Weird Banding/Artifacts on Character Mesh Occasionally

Hey, guys. Long time reader, first time poster. I’ve been banging my head against this for a while now. I’m getting strange banding/artifacts on my character mesh but only occasionally.

I’m using this character from the marketplace…

I did assign a new skeleton to him, but I’m not sure that would cause the problem? I’ve learned a lot trying to fix this, but no success so far.

Any help appreciated!

Okay, this is odd. I noticed it wasn’t happening in the valley where I was working, but when I went higher it started happening again. I leveled the terrain to the height where it was working, and those areas it doesn’t happen now. If I go above a certain point, though, it happens.

When I imported my heightmap, I set the Z to 45%, I think. Could that be the reason? I swear this was happening on another level with another normal landscape, but it could’ve been the lighting or something else that time? I’m going to keep experimenting, but if anyone knows if I should just scrap this landscape and start over, please let me know!

Here’s a test where it happens if I go on a hill slightly above the “safe” level/height…

Here’s a better example of the flicker/glitch turning on and off based on the height I’m at… I think!

Okay, going down many rabbit holes, I’m able to get rid of the problem by dropping the Z location of the landscape to -20,000. Not sure if that will hurt anything else? I’m beginning to think that it’s clouds trying to cast shadows and they’re too complex and being simplified? At the -20k Z location, I only get the glitch when I’m walking under a bridge which supports my cloud/shadow theory, I think. So, maybe by setting the landscape so low the clouds are out of range and not casting shadows???

Okay, a week later, and I’m pretty sure it was a decal/particle for a footsteps effect causing it. Hope this helps someone in the future!