Hi @anonymous_user_096ade8e! First step here is not to panic, and, if you can, make a copy of your project and place that on a flashdrive. Are you using the latest update of UE5? “EXCEPTION_ACCESS_VIOLATION” are usually caused by overall PC health. Have you done a Windows update recently? Definitely check your drivers and I also suggest removing and reinstalling your copy of UE5 and Visual Studio if you are using it. Here’s some more info on 0xffffffffffffffff errors. Last but not least posting your log for some more insight into what you are experiencing would be very helpful.
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