Occasional interruption of joystick buttons

[III/JG53_Don]

Hey guys

Sometimes the buttons of my G940, especially the buttons on the throttle, dont work ingame all of a sudden. To resolve this issue I have to press Escape to get in the game menu and then get back to my plane. Thereafter the buttons are fully functional again. Sometimes I have to do this twice and fiddle around a bit.

I am dealing with this issue quite a while. Allthought it isnt the worst issue it gets annoying through time. During landing procedure it can be even quite deadly if you want to change the pitch and you simply cant

Dont know if its a G940 problem only.
Anyone experienced the same with the G940 or any other stick?