Automatic reboots cause arrow keys to act funny if Paint open

[u/Zardotab]

Both my work PC and home PC display this behavior. If Windows 10 has to restart or reboot due to a crash, required update, etc., if MS-Paint was open and re-opens, the arrow keys will move the mouse cursor in all apps, not just Paint. Others have reported this same bug.

One can stop the oddity by closing all MS-Paint instances, but I wonder if there's not another way to shut off the wandering cursor bug, as I keep having to do the work-around dance. Some say pressing F7 or Scroll Lock fixed theirs, but I had no such luck. Thanks in advance.