I am not sure what is happening. In the two recent DD battles, my HUD disappeared after switching from torps to guns. When this happens, I cannot see any of my indicators, team players panel or mini-map. Sometimes when I hold my view at the bottom of the screen, the HUD flickers but does not come back until the new battle starts or I exit the current game and come back in.
I planned on putting in screenshots and opening up a ticket but when I watched the replays, the HUD was there through the whole battle in the replay. So if the HUD is there in the replay, how is it disappearing in the game? I have no mods running at this time.
I have this happen to me often for several months now. I hit ctrl/alt/dlt bringing up the task manager, clicking on world of warships in the manager, then re-click on the game and all is well. Hope this helps you....at least you don't have to close out of the game.