Materials breaking OUT OF NOWHERE - Quixel + UE 5.4.3

HELP

Friends, I’m having a problem with Quixel Materials in UE 5.4.3.

MY MATERIALS are just breaking OUT OF NOWHERE. I worked on this project a month ago, and everything was perfect; all the materials were working flawlessly.





But now, when I open it again, the materials are BROKEN FOR NO REASON.

I haven’t updated ANYTHING, I haven’t changed anything in the project, they just suddenly started breaking.

I don’t know what to do to fix them all at once…

I’ve already tried disabling and enabling virtual textures, but nothing works.

Can anyone help me? Thank you so much!