Hi @netluci, thank you very much for reporting this!
We were able to reproduce the first problem you described, with the /2 speed setting.
Thanks a lot for catching it; we’re already working on a fix 🙂
However I am not sure I understand the second problem you described.
Is the track still in /2 mode while you delete and replace the notes?
If not, could you make a short video in which you show how to trigger the problem?