When calibration varies unexpectedly - which I think means that PHD2 was looking for, say, 7 pixels per second on each axis and got 7 on one and 4 on the other - PHD2 pops up a message that reports that. What does SGP do then? Lately, since I’ve been there when this happens, I’ve been telling PHD2 to use the prior calibration, since it was good. But sometimes, like tonight, SGP then reports that PHD2 couldn’t be started and aborts the sequence. What should I do to avoid that? SGP log is linked below. The issue came up around 9:51pm.