This may be Gingerbread, it may be the app I am using (Cubed media player) but after my update to Gingerbread (Pete's "stock" version, GPA12) I am finding that Cubed player is having all sorts of trouble.
Albums that are WMA files are displayed in the player but listed as having 0 length, and the names of the songs are 'null'.
Cubed then screws up album art, but that may be because it detects files it should be able to play but is unable to use them and things get all weird.
Has anyone else noticed this? Is there a fix?