Materials are swapped when restarting or playing the project

[gnontus]

Hi, when I restart the project, or press play (simulate, other window, etc), some materials are swapping. A woodbeam will use the texture of a rock and things like that.
-Selecting the object makes it turn back to normal, in viewport or in simulate.
-It happens to nanite meshes, I haven’t seen it on regular meshes

If you encountered this, have an idea about what’s happening, or know how to fix it, I’m all ears!

[Pixel452]

This problem has been asked many times now, can we maybe pin it to the top?

Solution:
Megascans object material issue - Development Discussion / Unreal Engine 5 Early Access - Unreal Engine Forums