On mobile Android, version 1626, the Utility avatars by Rocktopus, have green bodies on the front and back. It might be a shader error, if I were to guess? Here's a list of avatars this is affecting
Utility Error (a.k.a the Error Robot):
ironically giving me an error, and I can't grab the avatar ID
Utility NO IK: https://vrchat.com/home/avatar/avtr_a56c95d9-9237-4cce-b6cd-a070bd356810
ironically has IK on mobile Android
Rocktobot: https://vrchat.com/home/avatar/avtr_b6017527-5905-481d-ac8a-0faa231206c8
has same green hue as Utility Robots; different color than avatar thumbnail
Utility LOADING: https://vrchat.com/home/avatar/avtr_6a339ee0-5640-4e46-8d0d-8ecf66bae828
comes up as Utility Error, after Server Processing
Utility PC: https://vrchat.com/home/avatar/avtr_ce1dc4ca-5c9b-45f2-bb46-0e9be200c460
comes up as Utility Error, after Server Processing