Meridian Flip fails, worked before

Over the past few month the auto meridian flip worked without problems. However, since a few days it fails reporting in the log that the scope is already on the rightside. then I have to abort the sequence. when
i send the slew command from SG the flip is performed. any hints?

thanks,

Stephan

It seems I cannot attach the log.
Log: 10.09. 23.14.