Game minimize problem.

[Christo]

I tried using vulcan cause someone told me i can get better performance. I tried it out in T-Hunt but randomly when i'm playing my game minimizes then i right click on siege to close it and i cant click it until i click my mouse 4 side button(Side button closes to hand). Not sure if that has anything to do with it. Then after it minimizes if I open it back up and click anywhere on the screen it just minimizes again. I don't think its my graphics card even tho i only have a RX 570 i'm able to run on the normal siege without problem. Anyone else experiencing this or know a fix? I know vulcan is new but i was getting higher frames on it so i'd like to use it more. P.S. My mouse buttons are linked to my left/right lean if it helps.