The playback issues seem to be fixed (no longer getting the 'stuck at 0:00' problem).
There's also no longer any crash/conflict when all of gen_undo (new test version), gen_nopro and in_shn (new build) are present.
Though there still seems to be some conflict between in_shn and gen_nunzio
(aka: One For Nunz / plugins list generator), and possibly something to do with One For Nunz's pseudo columns feature (see screenshot: 1 = without gen_nunzio, 2 = with).
winamp caused an Access Violation (0xc0000005)
in module winamp.exe at 001b:00000000
I get this crash sometimes on playback of .shn files (but not every time), and it always occurs when a .shn is playing and trying to view: Prefs > Plugins > Input.
Other than that, I think we're almost there...