I was playing a game with 3ais on a small map.  Late in the game I had two novaliths and had spammed them awhile. But then it wouldnt shoot. I know it wont shoot t a player you have a peace treaty with. This was not the case.  It didnt even show the cooling-down icon (with the slowly receding red bar), or the ready-to-shoot icon.  It was just a circle with a red bar at the bottom of the screen.  Any ideas why this happened?