Black Pixelated Noise Problem

Hi!
I’m fairly new to Unreal Engine and have hit a roadblock. I have spent hours surfing the internet and fiddling with settings but I can’t find a solution, so I decided to ask on here. The scene is filled with this flickering black pixelated noise (I don’t know how else do describe it). Here is a youtube link showing the issue I suspect the problem is with the lighting but I have no idea what to do to fix it.

Notes:
I’m on a fairly powerful mac.
I have tried many times to rebuild the lighting. The process seems to complete but the issue persists.

Knowing me, this is an obvious setting I have overlooked. Thanks in advance for your time.

Hi!

To me it looks like Z fighting! Are you sure there are no duplicated objects/faces where it happens?

HI!
Thanks for the reply! I tried to test this by creating a new level and adding a default mesh or two but the noise is still there. It seemed to only happen when I added some of the default textures. Some of the default textures didn’t seem to have the same effect though. Could this be a uv mapping issue? Thanks for the idea though. I’ll keep doing research into Z fighting to see if I’m missing something.

So I updated my engine to 4.21 and it fixed the problem! Thanks for the help! I have no idea what was happening but I guess all’s well that ends well!