Duplicated arm rotation

[hatteras]

Hi

I duplicated an arm and built the rig. Now when I rotate the “original” arm shoulder the duplicated one’s
arm and forearm rotate

Any idea what I’m doing wrong?

[hatteras]

Ok, I’ve been trying and I think I found where the problem is. In the duplicated arm’s settings I had to change the shoulder_L0_root to L01 and L02 respectively.