I couldn't figure out at first why my stars started having spikes. Then I walked in the dome to check the scope and saw that the dome was not tracking.
I rebooted, and relaunched the Nightly OS X version from June1. I watched and it would rotate to the scope position, but not track (slaving). I checked all settings and they were the same I have used for two years.
I then relaunched KStars OS X from May 29 and not worked flawlessly.
I then went back to June 1, and the dome stopped slaving. Something changed between versions May 29 and June 1.
I am downloading the June 10 version np0w and will test it tonight. I will have logs on this time.