I lost my UEFN map

[XRayer]

I wanted to open a Project in UEFN and suddently my project was a blanc platform and i don`t know how to open a Backup or rewind it

[Astrotronic]

Hello,

Welcome to the Forums.

First I’d check that your level is not in your content browser any more. (You can filter to see just levels if you want)

As far as reverting to a “backup” - You would need to have been using the Unreal Revision Control system. (Where you’d have checked in your project to revision control at some point in the past)

[XRayer]

I think i can`t rewind it anymore cause it said that it had to sync with my map then i pressed the button to sync it and then I entered my project and everything was gone

It´s in German but it basically says that this Project is supported by Unreal Revision Control and that it will sync it with my Computer.

[Astrotronic]

You would have needed to ‘Check in Changes’ (Which would have uploaded your project to the revision control servers) at some point before your map disappeared.

Another thing I just thought of - Make sure your UEFN project is not in a folder that’s managed by OneDrive/Dropbox/GoogleDrive (any sort of real-time external file backup is inadvisable for UEFN projects)

[XRayer]

Oh okay, thank you for your advise!

[wouter]

@Astrotronic

if

@Astrotronic

Another thing I just thought of - Make sure your UEFN project is not in a folder that’s managed by OneDrive/Dropbox/GoogleDrive (any sort of real-time external file backup is inadvisable for UEFN projects)

Did you accidentally use REVERT ALL CHANGES ?