hi, i just got an ableton live 8.11 crash on an amd64+ machine and 64-bit windows simply by this:

had revisit playing, one track was routed to bus1, which rebus was receiving on an audiotrack

made a duplicate copy of audiotrack-with-rebus-on-bus-1-on-it, muted the track and switched rebus to bus2,  during playback.

revisit behaved like a champ, saved the song, and ableton live's playback crashed and couldn't be revived. i've now saved both, and am about to load them in.

ok, loaded both ableton live 8.1.1 and revisit.. and both perform like a champ on bus1+bus2 (actually, bus2 wouldnt play, so i had to switch to bus2+3  for channel10  to be able to output it into  ableton live's receptive rebus 3.

but when i decided to put channel11, during playback, to a specific bus, playback started bugging. but this time without a crash.  so i was able to create a 3rd bus taht received 4. but then  rebus1+2  shut up, andthen 2nd rebus defaulted to bus1 when i changed 1st rebus into "not connected" (on its way to being bus-1 receptive). now i've got 3 rebuses going on.

i'm going to make an uneducated guess here - i'm not supposed to be doing this - im supposed to create a set of ReBus Vst's into ableton live, and assign the channels that i want to play on those buses. then start mucking about with playback. i can appreciate that, and, to be honest, im really, really, really dumbstruck by how well 1) revisit performs on an AMD, 2) everything has progressed while i haven't tried a version properly for longer than about 2 years. splendid work.

thus im just wonderin,  will this eventually be possible? i tend to do every single thing on top of a pattern playing, and being able to do this without playback being killed (and then, eventually, safely pressing f8 and f6 again  to start playback of those re-configured buses (since i have real doubts concerning whether your code could handle switching buses during playback?)..  would be freakin' amazing.