Hi Tomas,
That definitely seems to be the pattern. Today after fixing bad key, scheduled recording for 10. It did not record - checked service, it was running but bad key was back. Fixed bad key and scheduled recording for 11:15 it worked -but bad key again - fix bad key and scheduled recording for 2pm - only recorded for 7 mins, bad key again and service had stopped. Fix bad key and service was running. I scheduled recording for 8:15pm - did not record - service running but bad key again. I fixed bad key once more and service was still running.
Peace,
Mike