There was an issue with the script (Cycles render and surface export).
Now (I think) it is fixed. :)
Also, I added a few extra nodes, so you can change the texture scale via one Value node per material. Useful for surfaces.
I had a little time to check out the Quixel Megascans tool for Blender.
Well, it’s not working correctly with Blender 3.1.2 (I tested with this version only).
So, I fixed it. Also, I did a few general modifications as well.
Put it in the correct folder. (Something like this: C:\Users\~userName\AppData\Roaming\Blender Foundation\Blender\3.1\scripts\startup\MSPlugin)
Don’t forget, the Megascans library is free for Unreal Engine usage only.