I have been out using Stars/Ekos over the past 10 days and still have some buggy issues.
The main one is that in Guiding, the subframe with autostar do not work at all. When I try it, the auto star selects a blank area - and so can't find a guidestar. After it fails and retries, it again selects a blank area of sky!
I have to manually select a star each time.
After dithering, it can take about 45 seconds before EKOS puts the guidestar back in the center and gets stables again. I am unable to capture an image again until this happens otherwise the guiding deviation limit is reached.
Ubuntu 16.04 on a NanoPC T4
William Optics Star71
ASI 1600Mm Pro
LodeStar X2 and ZWO OAG