There are indeed some issues that you guys have pointed out, which are in the process of being hotfixed. These have to do with Azerite gear slots (and gems) not being weighted in the system as much as they should, and bugs with lower level trinkets being usable at max level. As much fun as it is to relive Taunka Time, we will be working on getting these fixed up.
I've raised the cap on this thread so any further specific examples you guys have that haven't already mentioned would be great, as getting this resolved is a high priority at the moment. Thanks for all the examples so far.