There have been on very rare occasions (maybe twice in 7 years) where I would load a save where my boat was following a plotted route; run along for about 5-10 minutes; and CTD -- and it was repeatable -- same location every time.
Finally, I loaded the save file and manually changed course about 90 degrees for 10-15 minutes; then returned to my pre-defined route; and no CTD.
I think just once in a blue moon the track movement model just gets a bad update (especially on long, straight legs is my observation) and ultimately underflows or overflows causing a CTD -- just my guess really. On long, straight legs, I always save about every five days of sim time.
|