Ey,
Been having Tal-Dub II vst crash for a long time now in Renoise after closing down a song that uses it. It gives me the /‘crashed in VST event/function ’ dispatch’ thread: ‘GUI’./ error screen.
Strange thing is that it doesn’t happen all the time. After trying to reproduce the crash, sometimes it happens 3 times in a row, sometimes 10 times nothing, no consistency in this.
Since this might be a strictly vst error, I’ve contacted the author to try and find out if it can be fixed. Today I’ve received an updated version of his plugin, but unfortunately it still crashed.
In his mail he wrote me:
Perhaps you, the Renoise devs, may have an idea why this crash is happening? 
Piece from the log on the crash when I’ve shut down a song:
/*"Shut down: Released the old Document
MIDI: Shut down: Closing all acquired MIDI devices…
Warning Message: Ouch. The VST plugin ‘TAL: Dub-2 (from TAL)’ crashed
in VST event/function: ‘Dispatch’, Thread: ‘GUI’
Warning Message: IMPORTANT: This is a fatal error. Please save the
current document under a !new! name to prevent losing important data.
Renoise will silently ignore any following errors from this plug-in.
Warning Message: DO NOT IGNORE THIS ERROR, DO NOT CONTINUE USING THE
PLUGIN. THIS CAN DESTROY YOUR SONG OR CAUSE OTHER RANDOM CRASHES AND
PROBLEMS!
Warning Message: It’s most likely that this is a bug in the VST
plugin, so please report this problem to the authors of this plug-in
in order to get this problem fixed!MIDI: Shutting down DirectMusic…
Shut down: Stopped and released all MIDI-Devices
ASIO: Stop Polling…
ASIO: Releasing ASIO4ALL v2…Shut down: Stopped and released the active Audio-Device
Shut down: Destroyed the Player
Shut down: Destroyed the Window and all Views
Shut down: Destroyed the Document
Shut down: Saving the preferencesGraphPort: Releasing DirectX…
Shut down: Destroyed the GraphPort
Shut down: Destroyed the Preferences
Shut down: App is downApplication: Exit OK
Application: Finalizing the API…Quicktime: Shutting down…
Closing log file…"