Meanwhile, I've been playing "Chronicles of Horatio Hornblower" under Beta 3.5 and have also experienced the problems with cannons not firing, which made the battle against the Temeraire a bit boring. My experience was that only my guns stopped firing, for no apparent reason; and that after a while, also for no apparent reason, they started firing again. The Temeraire was still firing, mostly at me, and the Justinian fired at the Temeraire whenever it happened to be pointing the right way. While my guns were affected there would be the usual vocal announcement, something like "Four!"; the guns would unload; there would be a distinct lack of smoke, flame, and cannonballs being sent in the general direction of the Temeraire, and my stocks of powder and cannonballs were not depleted. I'll see whether Hylie's fix helps when I next do a bit of privateering on the side.