Biped mesh's shoulder are flipped (armpit is rotated to shoulder side) on a biped mapped with UXR Avatar. Recommended solutions?

[01GOD]

Got most things functioning properly with UXR Avatar (although planning to look into how to animate legs with smooth joystick locomotion and also when stepping like in FinalIK).

However, sadly the biped mesh that was rigged with mixamo and mapped with UXR Avatar (I inspected it thoroughly and all the joint assignments look correct) has the mesh's shoulders flipped on play. So basically the armpits are rotated to where the shoulders should be. Any recommendation on how to solve that?

Thanks in advance!

PS: Seems it could maybe be a gimbal lock issue.

[entromp]

Duplicate of #10