Selected values not loading/saving in admin

Have a custom post type setup and configured it with CPT-onomies to show on the custom post type, but when I save the post, none of the values selected are being saved.

Any ideas on what the problem could be? Looks like because it’s a custom post type it’s not actually assigning the terms, so when CPT-onomies pulls the associated terms, nothing is returned.

I do see the custom post meta being updated with the associated term (post) ID, but still doesn’t load anything in admin section