Problems with microphone capture

[Anarkiah]

Hello,
I just started using OBS. I have seen many setup tutorials and got everything to work fine. The only problem I am having is while recording/streaming World of Warships. On the one hand, while im in the menus everything is fine. Match loading screen, still fine. But as soon as I am in the match, the microphone stops picking any audio.
I can see in my control monitor that the microphone bar in OBS is not moving aswell. If I Alt+Tab the bar starts moving again, till I Tab into the match. As soon as the match is over and I leave the match the voice is recorded again.

Any ideas what it can be? I mean, I doubt it has to do with the game, as many people stream and record this game.

Thanks in advance,
Anarkiah

 

[Anarkiah]

UPDATE: I tried Discord, it is the same there, as soon as I am in the match the mic stops picking audio

 

[Anarkiah]

By the looks of it, it has to do with the game. Other games work fine. Gonna try my luck in the games forum :)