Membership levels not working properly


So, I'm starting to get into realm of multiple membership levels, to protect access to various online courses. The problem is, the access levels don't seem to be operating properly.

I've checked the permissions and everything seems to be correct, but I'm getting disbarred from areas which should be a free pass based on the level.

It would be rather complicated to go into this in detail and explain exactly what membership levels I have, and what each of their permissions are.

What's your process around solving these puzzles? What information do you need?