Random Loss of Control Inputs

[Crunch_]

Hello,

I have been learning the ropes in freeflight with a 109. It seems at random times I will lose my throttle input, prop pitch input ect. I might still have some controls working, while others stop. Every thing seems to be working fine in the Spitfire.

I am using CH Products Stick, Throttle, Rudders and a Saitek Throttle Quad. I think I am just seeing some bugginess in IL-2 ClOD. any idea please and thanks?