Various textures in studio & in-game (hence why I believe it to be an engine related bug) are having transparent blocks appear in the middle of sections where the texture uses black. You can see in this gif that the red “blocks” change color with the body part color changing, as the rest of the car is a decal layered on top of the mesh. I just started noticing this issue today, September 28th.
As far as which textures deal with this problem, it’s a bit random.
Looking at all of my Camaro based models, 5 out of 10 are affected, with all but two being uploaded by different people. The two uploaded by the same person, one is affected and one isn’t.
Places where these holes appear are only areas where the texture has color (0,0,0)
On a related note, sections of textures have had their quality reduced greatly as well:
To be clear though, this is an issue with textures and not with meshes, as the same texture on a block, results in the same issue:
The decal in question shown above, is this asset.