Another reasonably good night of testing. I found another bug. The mount control in Ekos Mount is not working right. It may do a minor nudge without issue, but a slew more than 1 second or two or three nudges and it goes crazy. I think it gets into a battle with tracking (and loses). After such an occurance, it is necessary to shut everything down and begin again from scratch.
There was a minor problem with sync failure with one area of the sky where Alignment would not center a target and eventually quit on retry limit. Just in one area of the sky, so I am guessing it has to do with solving and will look into that another time. This is, by the way, what lead to me finding the issue with the mount control. I had an image in the corner of the FOV that would not center, so I tried the mount control...big mistake.
Guiding was working with both the Internal Guider and PHD2. I tried PHD2 in hopes the Guiding Assistant would help me to find settings that would calm down the guiding over-control. It did not. Guiding works well enough for visual observing, but is not good for long exposure astrophotography. Guiding (both the Internal Guider and PHD2) sets up a sine wave pattern of over-control that keeps the image centered, but moving around in a not-so-tight circle as the guider over-corrects for each scope motion, then has to over-correct for each over-correction. I feel certain there are parameters that can be entered to calm this down, but haven't found them yet.
I did get one image, but it was bright and I could use a pile of one second exposures. Even at one second, I had to dump a great many images in the stacking process.