Immobile (and immortal?) Jackbot in Crossfire

I just finished a Crossfire match on Ammo Mule where my team's first Jackbot didn't move beyond the first bridge and just stood there the rest of the game. I was however attacking the other team's Jackbot so I don't know why it stopped in the first place. It did seem to take damage (lights were down to orange a couple times), but I think the lack of the opposing team's aggression allowed the bot health regeneration to kick in. It would occasionally turn to shoot at something, but I never saw it actually fire. It would use its slam if an enemy pro came nearby, but when enemy BlackJacks were in range it just stood there.

When the second wave of Jackbots came around, our second Jackbot proceeded onward to its death in the enemy base, as did theirs, but our first Jackbot still stood vigilant in our right base lane. 3rd wave of BlackJacks come around, our first Jackbot is still in our base, and our left lane eventually breaks the other team's defenses. Meanwhile, me (Assault) and a friendly Sniper start shooting and moving around our sleeping giant to see if we could get him moving. Even at the end of the game it still just stood there in our right lane, doing nothing but the occasional slam.

I'm not sure what went wrong, and it wasn't under the bridge yet. I'm guessing it's some sort of pathfinding bug. If I was capable of pictures or video I probably would've recorded this in some way to help show exactly where it stood for 10 minutes, but alas I am not. I don't know if this is even reproducible since I was not in the area when it stopped, but I figure it should be known that it can happen.