diff --git a/CONTRIBUTORS b/CONTRIBUTORS
index d90b7dbcc..2ec25da2d 100644
--- a/CONTRIBUTORS
+++ b/CONTRIBUTORS
@@ -254,6 +254,7 @@ nav1s <nav1s@proton.me>
 Ranjit Odedra <ranjitodedra.dev@gmail.com>
 Eltaurus <https://github.com/Eltaurus-Lt>
 jariji
+Francisco Esteva <fr.esteva@duocuc.cl>
 
 ********************
 
diff --git a/qt/aqt/deckbrowser.py b/qt/aqt/deckbrowser.py
index 5dc688155..ca754e783 100644
--- a/qt/aqt/deckbrowser.py
+++ b/qt/aqt/deckbrowser.py
@@ -234,7 +234,7 @@ class DeckBrowser:
         if node.collapsed:
             prefix = "+"
         else:
-            prefix = "-"
+            prefix = "−"
 
         def indent() -> str:
             return "&nbsp;" * 6 * (node.level - 1)
diff --git a/qt/aqt/errors.py b/qt/aqt/errors.py
index a6d9251e2..89e15246e 100644
--- a/qt/aqt/errors.py
+++ b/qt/aqt/errors.py
@@ -14,7 +14,7 @@ from markdown import markdown
 
 import aqt
 from anki.collection import HelpPage
-from anki.errors import BackendError, Interrupted
+from anki.errors import BackendError, CardTypeError, Interrupted
 from anki.utils import is_win
 from aqt.addons import AddonManager, AddonMeta
 from aqt.qt import *
@@ -36,6 +36,14 @@ def show_exception(*, parent: QWidget, exception: Exception) -> None:
     global _mbox
     error_lines = []
     help_page = HelpPage.TROUBLESHOOTING
+
+    # default to PlainText
+    text_format = Qt.TextFormat.PlainText
+
+    # set CardTypeError messages as rich text to allow HTML formatting
+    if isinstance(exception, CardTypeError):
+        text_format = Qt.TextFormat.RichText
+
     if isinstance(exception, BackendError):
         if exception.context:
             error_lines.append(exception.context)
@@ -51,7 +59,7 @@ def show_exception(*, parent: QWidget, exception: Exception) -> None:
         )
     error_text = "\n".join(error_lines)
     print(error_lines)
-    _mbox = _init_message_box(str(exception), error_text, help_page)
+    _mbox = _init_message_box(str(exception), error_text, help_page, text_format)
     _mbox.show()
 
 
@@ -171,7 +179,10 @@ if not os.environ.get("DEBUG"):
 
 
 def _init_message_box(
-    user_text: str, debug_text: str, help_page=HelpPage.TROUBLESHOOTING
+    user_text: str,
+    debug_text: str,
+    help_page=HelpPage.TROUBLESHOOTING,
+    text_format=Qt.TextFormat.PlainText,
 ):
     global _mbox
 
@@ -179,7 +190,7 @@ def _init_message_box(
     _mbox.setWindowTitle("Anki")
     _mbox.setText(user_text)
     _mbox.setIcon(QMessageBox.Icon.Warning)
-    _mbox.setTextFormat(Qt.TextFormat.PlainText)
+    _mbox.setTextFormat(text_format)
 
     def show_help():
         openHelp(help_page)
diff --git a/qt/aqt/forms/finddupes.ui b/qt/aqt/forms/finddupes.ui
index 9a7c44c06..9bc8be87b 100644
--- a/qt/aqt/forms/finddupes.ui
+++ b/qt/aqt/forms/finddupes.ui
@@ -47,6 +47,9 @@
        <property name="insertPolicy">
         <enum>QComboBox::NoInsert</enum>
        </property>
+       <property name="sizeAdjustPolicy">
+        <enum>QComboBox::SizeAdjustPolicy::AdjustToMinimumContentsLengthWithIcon</enum>
+       </property>
       </widget>
      </item>
     </layout>
diff --git a/qt/aqt/tts.py b/qt/aqt/tts.py
index d559fb41f..f77e5c975 100644
--- a/qt/aqt/tts.py
+++ b/qt/aqt/tts.py
@@ -94,8 +94,15 @@ class TTSPlayer:
 
             rank -= 1
 
-        # if no preferred voices match, we fall back on language
-        # with a rank of -100
+        # if no requested voices match, use a preferred fallback voice
+        # (for example, Apple Samantha) with rank of -50
+        for avail in avail_voices:
+            if avail.lang == tag.lang:
+                if avail.lang == "en_US" and avail.name.startswith("Apple_Samantha"):
+                    return TTSVoiceMatch(voice=avail, rank=-50)
+
+        # if no requested or preferred voices match, we fall back on
+        # the first available voice for the language, with a rank of -100
         for avail in avail_voices:
             if avail.lang == tag.lang:
                 return TTSVoiceMatch(voice=avail, rank=-100)
diff --git a/qt/aqt/utils.py b/qt/aqt/utils.py
index 43efc513f..ae88dadcb 100644
--- a/qt/aqt/utils.py
+++ b/qt/aqt/utils.py
@@ -809,7 +809,7 @@ def ensureWidgetInScreenBoundaries(widget: QWidget) -> None:
     wsize = widget.size()
     cappedWidth = min(geom.width(), wsize.width())
     cappedHeight = min(geom.height(), wsize.height())
-    if cappedWidth > wsize.width() or cappedHeight > wsize.height():
+    if cappedWidth < wsize.width() or cappedHeight < wsize.height():
         widget.resize(QSize(cappedWidth, cappedHeight))
 
     # ensure widget is inside top left
diff --git a/rslib/i18n/build.rs b/rslib/i18n/build.rs
index f604c9167..75bc38787 100644
--- a/rslib/i18n/build.rs
+++ b/rslib/i18n/build.rs
@@ -8,7 +8,6 @@ mod python;
 mod typescript;
 mod write_strings;
 
-use std::env;
 use std::path::PathBuf;
 
 use anki_io::create_dir_all;
@@ -32,8 +31,7 @@ fn main() -> Result<()> {
     python::write_py_interface(&modules)?;
 
     // write strings.json file to requested path
-    println!("cargo:rerun-if-env-changed=STRINGS_JSON");
-    if let Ok(path) = env::var("STRINGS_JSON") {
+    if let Some(path) = option_env!("STRINGS_JSON") {
         if !path.is_empty() {
             let path = PathBuf::from(path);
             let meta_json = serde_json::to_string_pretty(&modules).unwrap();
diff --git a/rslib/i18n/python.rs b/rslib/i18n/python.rs
index ca780c041..a564de48d 100644
--- a/rslib/i18n/python.rs
+++ b/rslib/i18n/python.rs
@@ -1,7 +1,6 @@
 // Copyright: Ankitects Pty Ltd and contributors
 // License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
 
-use std::env;
 use std::fmt::Write;
 use std::path::PathBuf;
 
@@ -21,7 +20,7 @@ pub fn write_py_interface(modules: &[Module]) -> Result<()> {
     render_methods(modules, &mut out);
     render_legacy_enum(modules, &mut out);
 
-    if let Ok(path) = env::var("STRINGS_PY") {
+    if let Some(path) = option_env!("STRINGS_PY") {
         let path = PathBuf::from(path);
         create_dir_all(path.parent().unwrap())?;
         write_file_if_changed(path, out)?;
diff --git a/rslib/i18n/typescript.rs b/rslib/i18n/typescript.rs
index ce30048e2..0f483cb58 100644
--- a/rslib/i18n/typescript.rs
+++ b/rslib/i18n/typescript.rs
@@ -1,7 +1,6 @@
 // Copyright: Ankitects Pty Ltd and contributors
 // License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
 
-use std::env;
 use std::fmt::Write;
 use std::path::PathBuf;
 
@@ -22,7 +21,7 @@ pub fn write_ts_interface(modules: &[Module]) -> Result<()> {
     render_module_map(modules, &mut ts_out);
     render_methods(modules, &mut ts_out);
 
-    if let Ok(path) = env::var("STRINGS_TS") {
+    if let Some(path) = option_env!("STRINGS_TS") {
         let path = PathBuf::from(path);
         create_dir_all(path.parent().unwrap())?;
         write_file_if_changed(path, ts_out)?;
diff --git a/rslib/io/src/lib.rs b/rslib/io/src/lib.rs
index cb44467e6..0fd85e490 100644
--- a/rslib/io/src/lib.rs
+++ b/rslib/io/src/lib.rs
@@ -335,6 +335,15 @@ pub fn write_file_if_changed(path: impl AsRef<Path>, contents: impl AsRef<[u8]>)
             .map(|existing| existing != contents)
             .unwrap_or(true)
     };
+
+    match std::env::var("CARGO_PKG_NAME") {
+        Ok(pkg) if pkg == "anki_proto" || pkg == "anki_i18n" => {
+            // at comptime for the proto/i18n crates, register implicit output as input
+            println!("cargo:rerun-if-changed={}", path.to_str().unwrap());
+        }
+        _ => {}
+    }
+
     if changed {
         write_file(path, contents)?;
         Ok(true)
diff --git a/rslib/src/import_export/package/apkg/import/media.rs b/rslib/src/import_export/package/apkg/import/media.rs
index 32bf7c807..20543e074 100644
--- a/rslib/src/import_export/package/apkg/import/media.rs
+++ b/rslib/src/import_export/package/apkg/import/media.rs
@@ -17,6 +17,7 @@ use crate::import_export::package::media::SafeMediaEntry;
 use crate::import_export::ImportProgress;
 use crate::media::files::add_hash_suffix_to_file_stem;
 use crate::media::files::sha1_of_reader;
+use crate::media::Checksums;
 use crate::prelude::*;
 use crate::progress::ThrottlingProgressHandler;
 
@@ -75,7 +76,7 @@ impl Context<'_> {
 fn prepare_media(
     media_entries: Vec<SafeMediaEntry>,
     archive: &mut ZipArchive<File>,
-    existing_sha1s: &HashMap<String, Sha1Hash>,
+    existing_sha1s: &Checksums,
     progress: &mut ThrottlingProgressHandler<ImportProgress>,
 ) -> Result<MediaUseMap> {
     let mut media_map = MediaUseMap::default();
diff --git a/rslib/src/import_export/text/csv/import.rs b/rslib/src/import_export/text/csv/import.rs
index e45bbca1b..31dee84e4 100644
--- a/rslib/src/import_export/text/csv/import.rs
+++ b/rslib/src/import_export/text/csv/import.rs
@@ -1,6 +1,7 @@
 // Copyright: Ankitects Pty Ltd and contributors
 // License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
 
+use std::collections::HashSet;
 use std::io::BufRead;
 use std::io::BufReader;
 use std::io::Read;
@@ -106,6 +107,8 @@ struct ColumnContext {
     notetype_column: Option<usize>,
     /// Source column indices for the fields of a notetype
     field_source_columns: FieldSourceColumns,
+    /// Metadata column indices (1-based)
+    meta_columns: HashSet<usize>,
     /// How fields are converted to strings. Used for escaping HTML if
     /// appropriate.
     stringify: fn(&str) -> String,
@@ -119,6 +122,7 @@ impl ColumnContext {
             deck_column: metadata.deck()?.column(),
             notetype_column: metadata.notetype()?.column(),
             field_source_columns: metadata.field_source_columns()?,
+            meta_columns: metadata.meta_columns(),
             stringify: stringify_fn(metadata.is_html),
         })
     }
@@ -166,11 +170,19 @@ impl ColumnContext {
     }
 
     fn gather_note_fields(&self, record: &csv::StringRecord) -> Vec<Option<String>> {
-        let stringify = self.stringify;
-        self.field_source_columns
-            .iter()
-            .map(|opt| opt.and_then(|idx| record.get(idx - 1)).map(stringify))
-            .collect()
+        let op = |i| record.get(i - 1).map(self.stringify);
+        if !self.field_source_columns.is_empty() {
+            self.field_source_columns
+                .iter()
+                .map(|opt| opt.and_then(op))
+                .collect()
+        } else {
+            // notetype column provided, assume all non-metadata columns are notetype fields
+            (1..=record.len())
+                .filter(|i| !self.meta_columns.contains(i))
+                .map(op)
+                .collect()
+        }
     }
 }
 
diff --git a/rslib/src/import_export/text/csv/metadata.rs b/rslib/src/import_export/text/csv/metadata.rs
index d505c60d2..cd4150813 100644
--- a/rslib/src/import_export/text/csv/metadata.rs
+++ b/rslib/src/import_export/text/csv/metadata.rs
@@ -291,11 +291,8 @@ impl CsvMetadataHelpers for CsvMetadata {
                 .map(|&i| (i > 0).then_some(i as usize))
                 .collect(),
             CsvNotetype::NotetypeColumn(_) => {
-                let meta_columns = self.meta_columns();
-                (1..self.column_labels.len() + 1)
-                    .filter(|idx| !meta_columns.contains(idx))
-                    .map(Some)
-                    .collect()
+                // each row's notetype could have varying number of fields
+                vec![]
             }
         })
     }
diff --git a/rslib/src/media/files.rs b/rslib/src/media/files.rs
index ce17b40bb..b098eb19e 100644
--- a/rslib/src/media/files.rs
+++ b/rslib/src/media/files.rs
@@ -173,7 +173,9 @@ pub fn add_data_to_folder_uniquely<'a, P>(
 where
     P: AsRef<Path>,
 {
-    let normalized_name = normalize_filename(desired_name);
+    // force lowercase to account for case-insensitive filesystems
+    // but not within normalize_filename, for existing media refs
+    let normalized_name: Cow<_> = normalize_filename(desired_name).to_lowercase().into();
 
     let mut target_path = folder.as_ref().join(normalized_name.as_ref());
 
@@ -496,8 +498,14 @@ mod test {
             "test.mp3"
         );
 
-        // different contents
+        // different contents, filenames differ only by case
         let h2 = sha1_of_data(b"hello1");
+        assert_eq!(
+            add_data_to_folder_uniquely(dpath, "Test.mp3", b"hello1", h2).unwrap(),
+            "test-88fdd585121a4ccb3d1540527aee53a77c77abb8.mp3"
+        );
+
+        // same contents, filenames differ only by case
         assert_eq!(
             add_data_to_folder_uniquely(dpath, "test.mp3", b"hello1", h2).unwrap(),
             "test-88fdd585121a4ccb3d1540527aee53a77c77abb8.mp3"
diff --git a/rslib/src/media/mod.rs b/rslib/src/media/mod.rs
index 259dd52f8..8a599fbec 100644
--- a/rslib/src/media/mod.rs
+++ b/rslib/src/media/mod.rs
@@ -6,7 +6,6 @@ pub mod files;
 mod service;
 
 use std::borrow::Cow;
-use std::collections::HashMap;
 use std::path::Path;
 use std::path::PathBuf;
 
@@ -22,6 +21,7 @@ use crate::progress::ThrottlingProgressHandler;
 use crate::sync::http_client::HttpSyncClient;
 use crate::sync::login::SyncAuth;
 use crate::sync::media::database::client::changetracker::ChangeTracker;
+pub use crate::sync::media::database::client::Checksums;
 use crate::sync::media::database::client::MediaDatabase;
 use crate::sync::media::database::client::MediaEntry;
 use crate::sync::media::progress::MediaSyncProgress;
@@ -157,7 +157,7 @@ impl MediaManager {
     pub fn all_checksums_after_checking(
         &self,
         progress: impl FnMut(usize) -> bool,
-    ) -> Result<HashMap<String, Sha1Hash>> {
+    ) -> Result<Checksums> {
         ChangeTracker::new(&self.media_folder, progress).register_changes(&self.db)?;
         self.db.all_registered_checksums()
     }
@@ -176,7 +176,7 @@ impl MediaManager {
 
     /// All checksums without registering changes first.
     #[cfg(test)]
-    pub(crate) fn all_checksums_as_is(&self) -> HashMap<String, [u8; 20]> {
+    pub(crate) fn all_checksums_as_is(&self) -> Checksums {
         self.db.all_registered_checksums().unwrap()
     }
 }
diff --git a/rslib/src/scheduler/answering/mod.rs b/rslib/src/scheduler/answering/mod.rs
index 6ff8c6e2d..a71c6330f 100644
--- a/rslib/src/scheduler/answering/mod.rs
+++ b/rslib/src/scheduler/answering/mod.rs
@@ -443,9 +443,20 @@ impl Collection {
             .storage
             .get_deck(card.deck_id)?
             .or_not_found(card.deck_id)?;
-        let config = self.home_deck_config(deck.config_id(), card.original_deck_id)?;
+        let home_deck = if card.original_deck_id.0 == 0 {
+            &deck
+        } else {
+            &self
+                .storage
+                .get_deck(card.original_deck_id)?
+                .or_not_found(card.original_deck_id)?
+        };
+        let config = self
+            .storage
+            .get_deck_config(home_deck.config_id().or_invalid("home deck is filtered")?)?
+            .unwrap_or_default();
 
-        let desired_retention = deck.effective_desired_retention(&config);
+        let desired_retention = home_deck.effective_desired_retention(&config);
         let fsrs_enabled = self.get_config_bool(BoolKey::Fsrs);
         let fsrs_next_states = if fsrs_enabled {
             let params = config.fsrs_params();
diff --git a/rslib/src/sync/media/database/client/mod.rs b/rslib/src/sync/media/database/client/mod.rs
index f9c6e5ed1..fe3e7c840 100644
--- a/rslib/src/sync/media/database/client/mod.rs
+++ b/rslib/src/sync/media/database/client/mod.rs
@@ -18,6 +18,20 @@ use crate::prelude::*;
 
 pub mod changetracker;
 
+pub struct Checksums(HashMap<String, Sha1Hash>);
+
+impl Checksums {
+    // case-fold filenames when checking files to be imported
+    // to account for case-insensitive filesystems
+    pub fn get(&self, key: impl AsRef<str>) -> Option<&Sha1Hash> {
+        self.0.get(key.as_ref().to_lowercase().as_str())
+    }
+
+    pub fn contains_key(&self, key: impl AsRef<str>) -> bool {
+        self.get(key).is_some()
+    }
+}
+
 #[derive(Debug, PartialEq, Eq)]
 pub struct MediaEntry {
     pub fname: String,
@@ -175,11 +189,12 @@ delete from media where fname=?",
     }
 
     /// Returns all filenames and checksums, where the checksum is not null.
-    pub(crate) fn all_registered_checksums(&self) -> error::Result<HashMap<String, Sha1Hash>> {
+    pub(crate) fn all_registered_checksums(&self) -> error::Result<Checksums> {
         self.db
             .prepare("SELECT fname, csum FROM media WHERE csum IS NOT NULL")?
             .query_and_then([], row_to_name_and_checksum)?
-            .collect()
+            .collect::<error::Result<_>>()
+            .map(Checksums)
     }
 
     pub(crate) fn force_resync(&self) -> error::Result<()> {
diff --git a/tools/minilints/src/main.rs b/tools/minilints/src/main.rs
index 6d38278b5..ca645efe6 100644
--- a/tools/minilints/src/main.rs
+++ b/tools/minilints/src/main.rs
@@ -202,7 +202,7 @@ fn sveltekit_temp_file(path: &str) -> bool {
 }
 
 fn check_cargo_deny() -> Result<()> {
-    Command::run("cargo install cargo-deny@0.18.3")?;
+    Command::run("cargo install cargo-deny@0.18.6")?;
     Command::run("cargo deny check")?;
     Ok(())
 }
diff --git a/ts/lib/tslib/wrap.ts b/ts/lib/tslib/wrap.ts
index 39b10e9d1..e22c3e6d8 100644
--- a/ts/lib/tslib/wrap.ts
+++ b/ts/lib/tslib/wrap.ts
@@ -4,7 +4,12 @@
 import { getRange, getSelection } from "./cross-browser";
 
 function wrappedExceptForWhitespace(text: string, front: string, back: string): string {
-    const match = text.match(/^(\s*)([^]*?)(\s*)$/)!;
+    const normalizedText = text
+        .replace(/&nbsp;/g, " ")
+        .replace(/&#160;/g, " ")
+        .replace(/\u00A0/g, " ");
+
+    const match = normalizedText.match(/^(\s*)([^]*?)(\s*)$/)!;
     return match[1] + front + match[2] + back + match[3];
 }
 
diff --git a/ts/routes/image-occlusion/add-or-update-note.svelte.ts b/ts/routes/image-occlusion/add-or-update-note.svelte.ts
index ce31eaaaf..8494563b4 100644
--- a/ts/routes/image-occlusion/add-or-update-note.svelte.ts
+++ b/ts/routes/image-occlusion/add-or-update-note.svelte.ts
@@ -37,7 +37,9 @@ export const addOrUpdateNote = async function(
             backExtra,
             tags,
         });
-        showResult(mode.noteId, result, noteCount);
+        if (result.note) {
+            showResult(mode.noteId, result, noteCount);
+        }
     } else {
         const result = await addImageOcclusionNote({
             // IOCloningMode is not used on mobile
@@ -55,23 +57,12 @@ export const addOrUpdateNote = async function(
 // show toast message
 const showResult = (noteId: number | null, result: OpChanges, count: number) => {
     const props = $state({
-        message: "",
-        type: "error" as "error" | "success",
+        message: noteId ? tr.browsingCardsUpdated({ count: count }) : tr.importingCardsAdded({ count: count }),
+        type: "success" as "error" | "success",
         showToast: true,
     });
     mount(Toast, {
         target: document.body,
         props,
     });
-
-    if (result.note) {
-        const msg = noteId ? tr.browsingCardsUpdated({ count: count }) : tr.importingCardsAdded({ count: count });
-        props.message = msg;
-        props.type = "success";
-        props.showToast = true;
-    } else {
-        const msg = tr.notetypesErrorGeneratingCloze();
-        props.message = msg;
-        props.showToast = true;
-    }
 };