Hello 
I have a Set Up in Ableton where we us several different Vitals. In one Channel there is an Instrument Stack which changes between two Vital-Plugins. When we launch one clip Vital 1 plays (Vital 1 is turned on, Vital 2 is turned off). When we launch another clip Vital 2 plays and Vital 1 is turned off.
Somehow when changing from clip 1 to clip 2 some midi notes from the last clip overlap to the second clip which gives a mix of the midi notes from clip 1 and clip 2.
The only solution I have so far is to push pause and play for the whole track.
Can someone help? 