The UV map on the right foot of the Man bundle is flipped, resulting in inconsistencies with the rest of the common bundles.
I have the same pants applied to both characters here, but the arrow on the RightFoot of the R15 Man points incorrectly.
The left and right side of it is also reversed, shown by the flipped letters.
This file has an example of the bug alongside regular rigs.
ManRightFootUVBug.rbxl (46.7 KB)