M1101 just turns on the THC and there is not motion controller. Just PP to a PMDX bob. It only happens when there is more than one compete circle in a row. It will cut arcs all day long in either direction and will cut circles in either direction as long as the circles are not back to back. If you cut a 1" circle followed by another 1" circle it will fail on one or both of the circles. If you cut a 1" circle followed by something that is not a complete circle then another 1" circle, it all works fine.
If I make the G02/03 code modal it all works fine, which may be why the issue doesn't come up all that often. Most, if not all, CAM programs post modal code.