I couldn’t figure out what I had done wrong. I had an epiphany this morning that if I was trying to alter the query for the taxonomy term, the loop would need more information than just the Term ID. Once I changed my settings from Return: Term ID to Return: Term Object, everything works fine.
Just thought I would share this tidbit for any other beginning devs who might be smashing their head against a wall!
I imagine this works the same way for the Post Object query too.
PS> Thanks so much for Advanced Custom Fields! It makes life so much better (when you figure out what you’re doing of course).