From the log it seems you have set the flip limit to one minute (Hour Angle "00h 01m 03s" in the log) which is very low and quite possibly due to cone and other pointing errors the mount's step count still hasn't reached the meridian point even if the telescope is already pointing over it so the mount doesn't flip. Unless you have very limited clearance for filter wheel, camera etc. I suggest increasing the limit to at least 5 minutes, maybe even more to make sure the mount itself is also past the meridian when the flip is requested. I have pier in my observatory and no immediate danger of hitting anything so I can quite easily image about an hour on the "wrong" side of meridian in both directions.

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