You are not alone! Check out my thread http://forum.mikrotik.com/t/weird-routing-loop-in-logs-but-there-isnt-one/95280/1
I was told the recent RC would fix it but it has made no difference at all. I am not happy as I need software bridge for SFP and I currently can’t use any software bridge without the dreaded error logs.
MT support have been silent once provided with supout files confirming problem.