Motor issue?

[akuria]

I was doing some jumps and drops on my Decoy the other day and on my last jump (3ft gap) my crank seized up upon landing and I couldn't pedal. It eventually allowed me to start pedaling but got a nice like a rat was in my motor. Did it a couple more times. When I looked at my motor I saw missing screws and a broken one.

Are these important? Photos I see on other ones show them missing as well.

 

[Mikerb]

Clearly the screw have rattled loose and jammed in your chainwheel spider...hence what you felt and heard. One screw that is lost looks like it could be replaced.........the other one has broken a piece off the casing and the stub of the screw is still in the thread by the look of it. You are going to have to remove the chainwheel and spider to check it out.