Thanks for the input Barry.
I have things set to not save the plate solves as align points. Didn't help. All is good, focus, balance, no cable drag, no flex, min dec backlash, otherwise my data would not be as good as it is. See https://www.dropbox.com/s/31k77k89sdo4mvg/integration-Bubble-63min-Ha.jpg?dl=0
I increased exposure to 5 secs, 2x2 and still no go.
I've spent many many frustrating nights since last posting with this ongoing problem. It doesn't make any sense. A recent example was it couldn't plate solve for Vega but was able to put M57 right smack in the middle.
NGC 7023 was another example where plate solve failed. Close but no cigar. https://www.dropbox.com/s/obg3lhjp77svla8/plate%20solve%20off%20-%20july18-2017.png?dl=0
I'm at a loss to understand why this is happening. With PS2 and Astrometry. Doesn't matter, I've also tried remote and local. Some objects get plate solved and some right next door don't.
I can plate solve a sub taken with SGP. Solving isn't a problem, its where it points the telescope that is. Odd stuff.
As I indicated previous, I didn't have these problems with older versions of SGP. Only in latter ones. I think there's a need to look into this more since I'm not the only one experiencing the plate solve problems. I've been told others don't have a problem, but Its irrelevant to me if it works for others,I'm not them and nor are the other folks having plate solve issues. There must be more to this. Some commonality perhaps.