Check this: Saved in the middle of a cutscene now my game is frozen! HELP!
If all 3 of your backups fails then make sure to check the last comment in that thread.
I have no idea if this method works but you could try:
(Copy/Paste from Pokemon Insurgence Discord)
“That’s a keyboard buffer issue.”
- Try mashing down whichever key that got stuck.
- Disconnect your keyboard if possible(desktop systems).
- Restart your system.
- If it’s a wireless keyboard requiring a battery or something similar, try using a new battery, the issue sometime occurs on low battery.
- Try reinstalling/updating your keyboard drivers.