I rebooted my machine last night, and now none of my UE projects are opening. I only have 4.22.1 installed, and the projects were all made in that version.
I get the message ‘The following modules are missing or built with a different engine version’ and a list of modules. It asks if I want to rebuild, but clicking Yes then fails with a ‘Try rebuilding from source manually’ message.
I can’t even create a new project - the message appears as it loads for the first time.
I don’t think it’s anything to do with our office antivirus, but I’ve added the project folders as an antivirus exception just in case.
Something caused the project files corruption. It could be an hardware issue or a software bug or it might be a virus too. Did you test the RAM with MemTest86 or MemTest86+ too? Defective RAM usually causes files corruption with read/write access.