Update: I was able to migrate this project to a blank map and got no errors, I would still like to know how to fix this or what the issue was though if anyone knows.
My map was validating fine yesterday, today I logged in and when trying to launch my new map I get a novel of errors, the research I have done says files are missing or something but most of the errors are referring to stock epic assets. I tested other maps I have built before and they are validating fine, and all files are in the same place. I have uninstalled and reinstalled UEFN and Fortnite as well as reinstalled windows keeping my files with no luck. I am about to clear all files and reinstall windows and download and start over and hope for the best. but I still have my doubts it will be remedied. Hoping it is a glitch with the first-person stuff and it will be fixed soon but that isn’t my luck typically. Here is part of the novel UEFN has written me if anyone has any ideas.
I did have one drive issues but believe that is straightened out as all the other maps are validating fine.