[1.1.57] Biters not attacking an artillery wagon & co, instead stand next to it

[Waity5]

I've been clearing out an area that's quite a distance from spawn, and this keeps happening. A few hours ago the biters used to continuously try to attack the train, causing me to reload an autosave when they get to - and destroy - it. Now every time they "attack" they just slowly wander in their huddle next to the train, only agro-ing and attacking me when I get close.

[Oxyd]

Can you post the save, please?

[Waity5]

https://drive.google.com/file/d/12uMIVo ... sp=sharing
So for the life of me I can't seem to replicate the bug, as for some reason I didn't get a copy of my save earlier, replay mode isn't on, I've stopped expanding, and the bug only occurred after hours of expanding

[Waity5]

Can you post the save, please?

https://drive.google.com/file/d/1XtVsvA ... sp=sharing
Finally ran into the bug again! Just load the save, zoom out, and watch the attacking biters slowly-ish walk diagonally to the wall, whist being shot at. Only at the end of the attack do the biters actually try to attack