When adding new media while having the "Album List" view it renders this random glitch (one album loses X songs from the view and the one after it gains X blank lines representing "something").
Creating new folders in Finder takes sometimes 10 seconds until a response.
In Finder, on a view set to "Arrange by: Kind", deleting all files in a category causes the header of that category to appear in a fixed position regardless of scrolling on top of other content.
If you try to open a network-shared folder on a machine that has been turned off Finder freezes, and keeps freezing even if "Force Restart"-ed through the menu or Terminal.
Deleting songs does it too.