Actually, this problem is why I stopped using Jerboa. It's really weird. Of course, like an asshole, I never bothered to ask about it ornfile a bug report, because I'm a bad person.
there is but the TLDR version is that its a bug in sone andriid library not the software itself. There is also a github issue for the affected android library
I've been meaning to post about a similar issue, where when I backspace, it removes the space between the previous 2 words, so I have to backspace more, and sometimes it happens again. So this makes me have to start moving the cursor around myself to fix things. Very annoying.
I believe this is an issue with both openboard and the aosp keyboard (with jerboa specifically), here lemme find the repo for the open board fork thats still getting development
Edit: https://github.com/Helium314/openboard this fork is under active development. It can be installed via the apks on github or through obtainium. If there isn't one already it would be helpful to submit a bug report for the issue you're experiencing. It might be good to open a bug report with jerboa too
I have a similar issue. Jerboa overrides the default behaviour on my phone for double-tapping a word in a text entry box. In most other apps, double-tapping a word causes the whole word to be selected, similar to double-clicking in a PC word processor. In Jerboa, this behaviour is broken, and it simply jumps my cursor to the spot I double-tapped.