I'm making some custom materials but they all look funky (almost positive that this is user error). I've been saving over existing materials and creating "test_x" files but now my mat browser is cluttered to death with custom materials. Where are custom materials stored locally so I can do some spring cleaning?
Pirate myke is very correct, your custom materials are stored at: C : \Username\AppData\Roaming\Quixel SUITE\presets\smartmaterials Let me know if there is anything more I can help you with!