Severe bug in group path finding

It seems that there exists bug in sync mechanism for group path finding. After running game for about 30 mins, units in a group may circle around instead of going directly to the target. The reasons for that are two. The first is that I try to move single unit and it works well. The second is that, the units just circle and try to move in specific pattern, and they may fail to do that, so they just turn backward and retry it. This is my first time to see an infinite loop in software.

Hey @user28! Any chance you can capture a video or screenshot to illustrate what you’re seeing here? Thanks!

Hi, here is the gif made from the video. As you can see, units circle and do not move to the target.