I just started noticing that every so often when I move my dreadnaught, the dreadnaught stops performing it's idle animations and just stands in place frozen. I noticed this on mission 4 of the campaign. I seemed to have an easier time getting it to happen near that ramp on the left of your base, but I don't know if that has any bearing on what causes it to occur. That's just where I was when I started noticing it. The dreadnaught also idled on solid ground as you can see in the beginning. Please see attached video. System specs should be in video description if it helps.