OnCourse Software

Exception code 0xc0000005 is an access violation, as Dave said earlier.
There are a number of possible causes, including faulty memory, but it can be caused by a corrupted file; it's possible that a recent software update failed.
I suggest that you check your Windows system files using the sfc utility - this link provides useful information: https://answers.microsoft.com/en-us/win ... 524618d00a

I hope this helps,
Martin

Thanks for the suggestions! I will try those when I get a chance. I'm also uninstalling and reinstalling FSUIPC since that seems to be the source of the issues.

Just FYI, I solved the issue by uninstalling and reinstalling MSFS.

Ouch! Thanks for letting us know

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