It's hard to describe the issue so briefly in the subject line...
Basically, the Pathfinding behavior of the Virus_DoorsAttk object (the attack type for the Virus_DoorsDef object) for some odd reason seeks out the lower-right corner SectorDefense object regardless of the starting point of the Virus_DoorsAttk. The origin point of the SectorDefense object is dead-center and the bounding box is uniform (octagon shape). The Pathfinding cell size is 5 while the SectorDefense object is 60x60. Even with no other objects in the way, the Virus_DoorsAttk object seeks the lower-right corner.
The event lines in question start at line 153 (group "Blue Attack").
Here is the .c3p: https://drive.google.com/open?id=1O4DTsJaHk33fSkghFSRU0gbQYxAScIC_
Can anyone see why this is happening?