Only some avatars work in FBT for me, the rest are broken!

thankfully all my personal avatars work but sometimes when i try out another avatar, the hip is totally broken. i use 2 2.0s on my feet and one 3.0 on my hip (vives. they are both brand new and work perfectly) i’ve noticed friends will be able to use certain avis in fullbody and then when i clone them, the hip of the avatar is screwed up for me. it seems to be totally random because some new avatars will work fine for me, some will not, but none of my friends with fullbody have the same issue. it’s like a 50/50 split on whether an avatar will calibrate for me. anyone know what could be causing this?

i cleared my cache and also verified my game files, which is the usual fix for that, but it didn’t work. does anyone have suggestions? is this because i’m combining two eras of trackers?