My balista fell off the bridge!!

[Forward Observer]

It happened to me too. I had just depleted my first unit's ammo, and was moving them back off the bridge to make room for my second two ballistae. Next thing I know, while I wasn't watching, they just sort of melted through the bridge wall and appeared in the water below.

At first a few of the engineers were standing under water and still moving, but they eventually just stopped and fell over dead.

First shot



close up



Just a pathfinding issue, but still strange to have happen.

Cheers