[1.14]AI Confused when overlapping each other

I just doing stress testing on the ai,some how when the ship overlapping each other,the ai just doesn’t move,i set to protect and on the middle there is bunch of fighter escorting the front,the fighter on the middle confused finding the path how to get out and going front,the back and front just stay still doesn’t make any big movement,attached below the deployment files.
scenario4.rar (4.04 KB)