I was shooting a large mosaic (64 panels) with 135mm lens guiding with PHD2 and Ekos and there was a problem where guiding would be reported as started before GuideSettle, resulting in lost guide star and other issues. I traced it down to StartGuiding event handler incorrectly emitting newStatus(GUIDE_GUIDING) which would immediately trigger the capture in scheduler. PHD2 will always send SettleDone and GUIDE_GUIDING should be set there to avoid that problem. I tested the change extensively using simulators and did not find any issues - all works as expected.

Run Ekos with phd2 and simulators. Schedule a capture and observe guide logs. The capture should start only after phd2 guiding settles