I had that same error happen with version 9.10 but don’t recall having seen it so far on 2006. My first experience with it was when I got a new machine that had hyperthreading turned on and I installed 9.10. It would happen more than 50% of the time when I would exit ME. I turned hyperthreading off and it almost entirely went away with only very occasional occurences but it did still happen. Like you say there is no way to predict it though so its hard to repeat.