Thanks John for looking into that and giving me some direction with possible fixes. I'm going to chalk this up to just being a finicky unit. The codes "As learned from MX900" are codes imported using the universal browser for the discretes and using the factory remote learned codes for everything else.

I'm going to pull another from my inventory and test it on the bench. Probably should have done this from the getgo.
As always, your help is much appreciated.
Thanks,
- Matt