I'm sorry but I didn't know which switch you meant to look for? number 23 or number 28?
how can I tell if it's wrong and not working properly

I completely removed the lever and tried to switch manually but the problem remained the same.
Apparently the problem is really in the switch fork.
do you think the problem may be in some gear. for example a broken tooth or a worn tooth

Hello,
I recently own a CFMoto x5 and I have a problem which is the following
- Reverse gear R is not engaged
-at repeated attempts sometimes turns on R, but as I give more power and turns off.
I tried to adjust the gear lever, but without success.
any suggestions where the problem comes from?