It looks to be what we have been saying all along. The flip is failing because it is too close to the meridian.

A slew finishes at 00:03:29, the pier side is West so Kstars expects that a slew will be needed soon.
At 00:04:00 the flip slew starts. The hour angle seems to be very close to zero.
Then 4 seconds later the slew finishes and Kstars reports that it failed because the pier side did not change. The system is set to retry in 4 minutes but you stopped it before then.

You need to allow the mount to track further past the meridian At present your limit is 0.02 hours, 1.2 minutes.

One thing though, it looks as if the first slew was to a position that was past the meridian - a positive hour angle - this slew would b expected to have already done the flip. I would experiment by doing a series of manual slews to see at what hour angle the mount will flip.

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