Thanks Wolfgang, the log file should be at the end of this link:

You'll see that the log file starts for a 31 Jan session and then suddenly becomes a 4 Feb session. Not sure why it didn't start a new log file for the Feb session. The first successful flip & continuation happens around 2140-2150ish. The flip that happened but then imaging didn't continue is around 0226.

There was a scheduler job that should have begun anyway at 0230 if I remember correctly & that didn't start.

Thanks in advance for any insights!