Last weekend while starting an imaging session, I used Starry Night software to select a target (M86 in Markarian's Chain) and slew the scope. When finished, Starry night placed the scope icon right on target, yet when I took an image, M86 was no where to be found. This has happened before and I work around it by running a blind plate solve, syncing the scope and slewing again. Usually this puts the target dead-center in the image. However; I was having problems with the plate solve, and just couldn't get it to point to M86. The interesting part was that I could target Polaris just fine, and when I tried M86 again it would slew to the exact same incorrect spot as before (I could tell because there were two tiny galaxies in the image), so whatever was going on was repeatable. I'm pretty new at this, so it's probably something bone-headed on my part, but I would appreciate any advice on what would cause this behavior. I'm imaging with a Stellarvue sv80 on a CGEM DX mount, using MaximDL for scope control, Starry Night for positioning. and a Polemaster for alignment.
Thank you for the help!