Problem while focusing

Hello
I’ve tried my first autofocus routine.
The mount (Paramount PMX) center the object, SGP solved the position, PDH2 was tracking ok.
Everything was Ok.

But then, while focuser started, the guide star began to move and PHD2 couldn’t do anything.
The SkyX tells that telescope was tracking, but everything was moving like if it doesn’t

Any idea?

Thanks
Juan Jose

P.D. Clouds have come and I can’t continue testing…

sg_logfile_20160809221645.txt (443.9 KB)