Dont no wat kinda of bug but very annoying

I dont know if it was because of the map i was on but seems like a bug in the game itself

The attack was to kill 2 naval transports with 2 naval main attack units the attack happened as in SS but instead it shows my 2 ships attacking nothin and the 2 transports instead in the middle of the channel. Because the 2 trans didnt get killed or even tbed uk reinforeced my cap with 30 inf and i lost the battle.