Exiting and then quickly entering songselect will just display menu background for few seconds

[LittleEndu]

Even had it throw an error once: Disposed Drawables may never get a parent and return to the scene graph. Line 1303 of Drawable.cs. Wasn't able to get stacktrace because only had it happen once.

Easy to reproduce by just pressing Esc + P + P while in songselect.

[Aergwyn]

Maybe kinda related (not necessarily with SongSelect):
Try E -> ESC and repeat to switch between main menu and editor. Eventually I managed to get the error that an inactive screen isn't allowed to push or something (recalling from memory).
I once actually managed to get in a state where no menu was displayed at all and I was stuck there on the empty background of the main menu. I couldn't reproduce and try to debug that one though. :(

[LittleEndu]

Transitioning to song selection still hangs for a good second.