Failed meridian flip, successfully shut down

Sequence Generator
1

Hi,
I have an AP 900 using APCC Pro and AP ASCOM driver. SGP version 3.1.9.519. I also run PhD2 2.6.10. Scope is an EdgeHD 8 with a ZWO OAG.
The first two nights I had this scope out, it ran fine, did a meridian flip at the right time and was parked in the morning. Last night, something happened and it did not execute the meridian flip. SGP gracefully shut everything down. This is my first meridian flip failure in many years. There is a chance I messed up a setting, but not sure where to look.
Here is the SGP log file:

https://drive.google.com/file/d/11kSyA4f8KirFSSXrW6q-y852YPtMwHnM/view?usp=sharing

and here is the PhD2 log file.
https://drive.google.com/file/d/1XHBdwk0WAX06sO7Lmk1qBVIKSlw25NMc/view?usp=sharing

Any ideas where I can start looking to track this down? I will be experimenting tonight to see what I can learn.
Thanks,
Tom C

2

After some more investigating, the problem is with the ASTAP plate solver. It had been working great since I started using it more than a year ago. Now it intermittently solves frames. Sometimes it will fail on a frame, if I right click and tell it to solve it will work. It is very hard to pin down why it is failing. I have updated the .exe file to the latest version, but that did not make it any better. I will continue to investigate, but not sure where to look.

3

Hm, I haven’t seen this behavior with ASTAP. At a minimum you may want to configure the blind solve fail over.

Jared