Troubleshooting for Killer Instinct Anniversary Edition - Patches 3.11.15, 3.11.16 & 3.11.18

I was helped by support to resolve this issue. Apparently it is an OS level issue that is being caused by updates to Windows not removing an old instance of GameInput service when installing the current version, causing your system to run both simultaneously. I was directed to a Reddit thread to resolve the issue manually, but it is not a simple fix for the masses and requires some decent knowledge of computing to implement, so follow at your own risk:
https://www.reddit.com/r/WindowsHelp/comments/18bb6e0/gameinput_service_stops_working_after_windows_11/

Game seems to be working fine now. Hopefully this fix can help anyone else running into this issue.

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