Need help with custom rig

I want to animate a custom rig, however it always shows up as empty when selected in Moon Animator. Rig shows up empty when selecting the rig. Sometimes after rigging the model the joints will show. However they can’t be interacted with and persist even after closing moon animator.

Looked online/forums regarding the issue and have tried the following fixes;
-PrimaryPart is HumanoidRootPart
-Nothing is anchored
-Redoing the rig and avoiding overlapping joints