IMC Player mappable key settings dissapear but name in use !

Hi All,
I forward in my learning and now I would to make the keys remappable for the player. All worked great with the gamepad but I would to make a change in a display name and see that my IMC do not have the override setting and the remap options with name and display name nomore !
When I try to redo it it say that the name is already in use ! So I thing it must be a bug, can you confirm me ?
I have to precise that I loose the half of the setted buttons, some options have not disapears (but the remap work ! I have a dynamic fill of the entries). At a time I delete in the save game the configuration but I think it’s in the binaries it must not affect the dev !? I had to delete because the script do not take correctly my changes from the IMC, very curious.
Can be the microsoft onedrive make problems if they save my workdir ? Do you think I have to shutdown it when I work ?
Thank you if someone can help me