Loaded fine on Monday, tested online fine, nearly complete at 53% memory so ‘plenty of room’. Tried repeatedly since update just takes forever then loads map but is not editable. I test little and often but this was after no change by me, just the update. I know this is a Beta but to just drop over 100 hours work like that is frustrating. After more than 3 years with Unreal Engine (Proper) really did not expect this… yet another case where it would be nice to be able to step back through revisions, and roll back updates, take local backups and be able to restore them, AND, local test mode would be fantastic as online here in South Africa takes Sooooooo long to cycle through for even the smallest test…
Thank you for your report! We would like to look into this further, would you be able to submit a bug report using the form available here: Fortnite Creative