With the current crop of restart on safe changes, I decided to play safe tonight and I disabled disconnect on sequence end and camera warmup, hoping that a restart would be smoother. The guider (PHD2) in the guider settings, still had disconnect on sequence end enabled.
SGP ran shut down for safety issues as soon as the timed image started, though I am not certain why, since it is dry and cloudless. Putting that to one side, I restarted the sequence, without touching PHD2 and SGP stalled, waiting for the guider. PHD2 did not reconnect to the equipment and even manually connecting PHD2 while SGP was waiting for the guider did not free things up.
After various sequence restarts, disconnects etc. the only way I could get SGP and PHD2 to play nicely was to completely exit both and reboot SGP and its sequence. (Friday 13th syndrome?)
The disconnect and warmup settings are a unique combination for me which I don’t normally use but the behavior suggests SGP does not reconnect PHD equipment, if its disconnecting at end of sequence option is disabled? Problems kicked off around 21:00.