I wanted to try something yesterday and I removed all the files from Documents\STAR WARS Battlefront II\settings folder. It actually did wonders. Of course, it removed the graphic settings and I had to change them back again, such as disable DX12 and turn off HDR etc. but the mouse was working perfectly fine, the game loaded and everything was working really fine.
For once. I played the game again in an hour and it was back to the beginning - everything buggy. So I removed those files again, but it didn't work.
I think that would be some lead for you?
Your most recent post reminds me...
Reinstall your graphics driver with the "clean installation" option, if you did not use this the first time you installed them. While I'm not convinced this is your issue, it's easy to do, so worth a shot.
BTW - The game will take longer to load the first time you run it after reinstalling.
