Is your texture a power of two? eg: 128x128, 256x256, 512x512, 1024x1024, 2048x2048? you can also work in rectangles as long as its using those sizes. Eg. 128x256, 1024x512 For a test try editing the UV so that the arms are not on top of each other and see if the problem still happens. It could be a mirroring/overlapping…