Yesterday evening it was clear. I continued my tests.
PHD2 very often displays star lost mas star mass has changed. It lasts 1 second and it starts again
I see my camera quickly displays a wrong image (noise?)
Ekos resets guidance each time and it blocks the capture
I failed to guide with the internal tool. In automatic he never found a star. With manual choice of the star it could not be done either
"...and you have set the option to reset calibration after a slew (in Guide->Options)?"
Yes this option is enabled by default. I go try this night without
"Are you using multi-sep guiding? "
Yes, I try but the result is the same