Check your mesh’s normals. They might not be all pointing out from the faces causing weird normal interpolation. Also probably best to unhook the normal node if you are not using a baked normal map there.
Ummm, sorry I’m very new to the whole UE5 material thing. I don’t really know what I’m doing. XD I do know that I managed to somehow get this effect by messing around with a material from a Youtube Tutorial. I want it to have that like flowing lava flow, but also to glow, like basically exactly at the 10 sec mark is what I want it to look like, if you could give me more advice I would really appreciate it. Cheers, and thanks so much for comenting!