Download the latest version (0.4.5b), which might help with your frame rate. Several logic issues may occur if the frame rate is not stable.
I can't fix the problem if I don't know the cause, and I cannot reproduce the issue on my end. Feel free to send a video or screenshot of the problem. That's why I'd like you to join Discord, as communication here is slow.
And instead of creating a new comment, you can reply to my comment.