Why has everything disappeared from my project?

I added a few free assets to my Unreal Project and it told me there wasn’t enough space to add it to the project. I then loaded the project and everything I had previously in the project had just vanished, and there seems to be no way of retrieving it. Can someone help me fix this? I had a lot of world details and assets in it, it would be very annoying if i’ve lost it all.

Hello,

We’ve recently made a switch to a new bug reporting method using a more structured form. Please visit the link below for more details and report the issue using the new Bug Submission Form. Feel free to continue to use this thread for community discussion around the issue.

https://epicsupport.force.com/unrealengine/s/

Thanks