With the ‘cot being able to see the colours when linked’
If you are using a Proxy rather than library overrides (which I would still recommend at this stage – so many bugs), then you need to hide the rig in the original file (computer screen icon) and save it.
Then when it is linked it won’t show over the top of the proxy rig, hiding what you have selected.
Re the knees, elbows. I’m trying to narrow down the bug there. Something weird has changed in 2.8+ and these constraints don’t function the same.
