Thanks, MaryK4. No, I was not a remote worker.
I decided to file as a part-year resident of MO and a non-resident of AZ. Since I had no AZ-sourced income, TurboTax concluded that I owe zero tax in AZ and that I should get my entire AZ tax holding back as refund. My tax holding in MO was short, so I will pay the balance today. Overall, this combination gets me the highest overall refund, and it seems logical to me.
