Machineguns don't work in 109-e4 ?

[cianw1]

My stick is a Tflight Hotas X, i think its 1 stage trigger. It aways used to work fine and it still works fine on all other planes, just the e-4 ? I also checked controls and they are all ok, e.g i have joystick button 0 for MG, button 2 for cannon, 3 for rockets and 4 for bombs.