Mini losing access to Xfinity on Demand with 20.4.5

OK here's a strange one - my Minis with 20.4.5 are regularly losing access to Xfinity on Demand, and it was rock-solid before 20.4.5. The host Roamio always has access with no issues, and if I reboot the Mini it comes back with no problem. Everything else on the Mini works fine except XOD disappears after it's up and running.



Anyone else seeing this?