Editing one synth affects the sound / note length of another synth

[beautron]

I have this bug too it seems.

Using fill to add 3rd synth melody changes melody on another synth

yes, if I stop and then start playback the other synths melody goes back to normal for a second and then reverts back to the altered one. if I stop playback, mute the new synth and then play the other synth is normal and doesn’t get affected. if I unmute it the other synth goes weird again. Sounds like exactly the same bug.