Some notes not audible when using Keys sound font.

I've been working on transposing a piece that started in Musescore 3. I recently updated to 4.1.1 so the score wouldn't sound so rigid with the help of the sound fonts, and now some notes simply aren't audible (and there is no playback when I click on a note to edit it). Does this have a fix? or is it simply a matter of waiting for it to be patched? I've been using the Soft Piano sound font, it seems the issue is present in some but not all Keys fonts.

note: I've tried re-loading the score and de-selecting and re-selecting "Play" in the playback properties for those notes.