"Failed to resolve validation session" when launching session, doesn't point out any errors or files

[ImPeQu]

I filtered only Errors in the Output Log and found out there was another error just above the one I posted. It led me to a single file and the session now starts after deleting it.

Looks like my issue was a clone of this one

[BLOCKER]Regression in 27.10, can't start session/upload private version

Please select what you are reporting on: Unreal Editor for Fortnite What Type of Bug are you experiencing? Stability Summary Over-night starting session and uploading my project stopped working. I’ve tried few older versions from yesterday, a week and 2 weeks ago and nothing works. I’m guessing something changed on your backend already for the 27.10 update as the log is: [2023.11.14-11.01.14:764][569]LogValkyrieScratchManifest: Display: Profile Begin SyncProject.PruneScratchSpaceFiles.Scrat…