do not store tracks that could not be loaded to local library

docs/info/release-history.rst

@@ -58,6 +58,7 @@ Changed
 Fixed
 -----
 * Drop ``null`` responses from Spotify API which cause bugs in execution logic
+* Bug in :py:meth:`.LocalLibrary.load_tracks` that would cause it to store ``None`` when the track could not be loaded
 
 
 1.1.10

musify/libraries/local/library/library.py

@@ -325,7 +325,8 @@ async def load_tracks(self) -> None:
             unit="tracks",
             total=len(self._track_paths)
         )
-        self._tracks = [await self.load_track(path) for path in bar]
+        tracks = (await self.load_track(path) for path in bar)
+        self._tracks = [track for track in tracks if track is not None]
 
         self._log_errors("Could not load the following tracks")
         self.logger.debug(f"Load {self.name} tracks: DONE\n")