Problem with opening uefn blueprint or material and all the stuff

Summary

I’ll be brief, I can’t open any UEFN blueprint files or even materials anymore. Basically, I can’t do anything anymore. Do you have a solution?

Please select what you are reporting on:

Unreal Editor for Fortnite

What Type of Bug are you experiencing?

Other

Steps to Reproduce

i don’t know how to reproduce it

Expected Result

Use uefn like before

Observed Result

IDK

Platform(s)

windows

Video