Rigged parts not rigging properly on a non-humanoid rig

You can write your topic however you want, but you need to answer these questions:

What do you want to achieve?
To set up a rig properly without using the humanoid object

The Issue?
I appear to be going in the right direction but
one of the rigged parts will not stop :

Spinning and moving on an inverted axis when selecting “Med Circle”
Moving other parts in the rig without “Med Circle”

Video


Setup
issue image

I have searched far and wide, couldn’t find the solution to my problem. Not sure if this is an issue with moonsuit or the motor6d’s.