Hi @69_Tensors,
I have made many builds, recently on the 12th November 2021, a change was added and now the patch is to create the directory so in the Windows Command shell.
C:> mkdir C:\Users\Owner\source\repos\ue50\Engine\Restricted\NotForLicensees
where ue50 is the root of my branch
then GenerateProjectFiles.bat -2022
again and my generate works.
There were 1709 updates to the 5.0 repository which got automatically copied into one of my forks as well because I did one small update!.
My Quixel forked repo had a slight name change due to the final release of VS2022 day, but it still works.
jimshalo10/UnrealEngine-5: Update the Quixel Plugin to the latest version 2012.0.04. The original Early Access 2 branch for VS2022 is “ue5EA-vs2022” (github.com)