Are AA turrets bugged for other people/servers?

Tonight, as I was defending the glorious Soveriegnty from the Imperialistic terrans attempting to dig their claws into the dusty brown heart of Indar, I noticed a few pesky little Mosquitos on the horizon, so I jumped into an AA turret to swat them down. Much to my surprise, what happened was not a glorious eruption of purple tracer fire and explosions, but make a little "click", which I discovered was because the cannon was, apparently, "overheated", despite not having been used, nor did it cool down. Now, given it was Indar, that would not be terribly surprising from a realism point of view, but from a gameplay aspect it was a bit dissapointing.

Others of my allies remarked upon the... inconvenience of this situation, and I found it repeated when I make a strategical rearwards advance towards the nearby tech plant to defend it, which, as you might expect, made defending against enemy aircraft somewhat more difficult than normal.

tl;dr: AA turrets were broken on Matherson/Indar tonight, anyone seen that before? And/or should I file a bug report on it?