As a solution to this. After talking with @HalcyonKnight96.
I was advised to delete staging folders that are located at
C:\Users{UserName}\AppData\Local\UnrealEditorFortnite\Intermediate\ValkyrieUploadTemp
I’d also advise as well to backup your project and remove project from disk and re-sync with revision control.
Worked for me and haven’t had any issues since