crashing when moving "-" notes

when i have been using Synth v and i am splitting up notes to use “-”, it seems to crash when i move it over other notes- like they are overlapping as i try to fix the length of one of the notes. it has only been these notes, and its been on untuned files with no parameter edits too. it specifically seems to happen when i try to adjust a note when its overlapping another “-” note.