Help: fed 2 problem

Hello everyone

I'm new here at this forum, I have a very annoying problem with my fed 2, which otherwise (excluding the self timer) works perfectly fine.

Whenever I activate the shutter, the pin on the bottom of the sprocket drum ends up sitting on top of the pin on the shutter gear, instead of before it, and this forces me to skip a frame when winding. Does anyone know the cause of this problem and what I can do to solve it?

Thanks in advance for any help.

are you setting the speed before the Camera is wound? These camera have to have things set in orer.