Modifier Buttons not recognized (sometimes)

[Tiramisu]

On certain occasions the modifier buttons on my controller are ignored by DCS, i.e. when i press a modifier + button, then only the unmodified button is registered. I do not know what is triggering this bug, but I have noticed this since I increased the amount of my modifier buttons from two to four. When this bug occurs, the modifier buttons are not registered in the the control options as well. However, when I open the window where you define modifiers and then press ok, then the modifiers are registered again. So it is definitely a DCS bug and no problem with my controller. 

Edited August 29, 2021 by Tiramisu

[Kang]

I've noticed something similar, too, and at least for me it clears up by tapping another modifier. For example, LShift might stop responding until I happen to it LCtrl once, then it's back for a while.

[Flappie]

There's a possibility you're struggling with a side effect of this bug:

 

 

[Tiramisu]

I was only flying in single player, but I hope the investigation of the bug you are referring to will fix my problem as well. If you need more details about my setup, then please let me know.