diff --git a/docs/windows.md b/docs/windows.md
index 572ae515a..c0718cae2 100644
--- a/docs/windows.md
+++ b/docs/windows.md
@@ -94,7 +94,7 @@ the path, and Bazel will be configured to output build products into
 
 However, this will not work in PowerShell, as .bat files are executed in a subprocess.
 To invoke bazel scripts, you will have to adjust your session path manually.
-One option is to create a script that sets up your Anki develop environment for you.
+One option is to create a script that sets up your Anki development environment for you.
 Here is an example:
 
 ```powershell
diff --git a/qt/aqt/mediasync.py b/qt/aqt/mediasync.py
index 3f40b77ad..4326ccc94 100644
--- a/qt/aqt/mediasync.py
+++ b/qt/aqt/mediasync.py
@@ -59,7 +59,7 @@ class MediaSyncer:
         self._log_and_notify(tr.sync_media_starting())
         self._syncing = True
         self._progress_timer = self.mw.progress.timer(
-            1000, self._on_progress, True, True
+            1000, self._on_progress, True, True, parent=self.mw
         )
         gui_hooks.media_sync_did_start_or_stop(True)
 
@@ -134,7 +134,7 @@ class MediaSyncer:
                 timer.stop()
                 on_finished()
 
-        timer = self.mw.progress.timer(150, check_finished, True, False)
+        timer = self.mw.progress.timer(150, check_finished, True, False, parent=self.mw)
 
     def seconds_since_last_sync(self) -> int:
         if self.is_syncing():
diff --git a/qt/aqt/progress.py b/qt/aqt/progress.py
index a3bd5a3c6..633928b97 100644
--- a/qt/aqt/progress.py
+++ b/qt/aqt/progress.py
@@ -70,7 +70,7 @@ class ProgressManager:
                     pass
                 else:
                     # retry in 100ms
-                    self.timer(100, func, False, requiresCollection)
+                    self.timer(100, func, False, requiresCollection, parent=parent)
 
         t = QTimer(parent)
         if not repeat:
diff --git a/qt/aqt/utils.py b/qt/aqt/utils.py
index bb806dc3d..1723e7777 100644
--- a/qt/aqt/utils.py
+++ b/qt/aqt/utils.py
@@ -757,12 +757,15 @@ def closeTooltip() -> None:
     if _tooltipLabel:
         try:
             _tooltipLabel.deleteLater()
-        except:
+        except RuntimeError:
             # already deleted as parent window closed
             pass
         _tooltipLabel = None
     if _tooltipTimer:
-        _tooltipTimer.stop()
+        try:
+            _tooltipTimer.deleteLater()
+        except RuntimeError:
+            pass
         _tooltipTimer = None