I just bought a used red1 mx camera and found out that it has the same issue of strobing in all shots where anything moves within the frame (even when the camera is fixed).
I tried all shutter speeds and all bitrates, did the black shading too but nothing has worked. Even changed the lens mount and tried on a different lens :(
I am not sure if my problem is related to any firmware upgrade or not because I have not upgraded the firmware and I am not sure if the previous owner did that.
I have an urgent shoot coming up in 2 days and I am stuck with this problem. Would appreciate if you or anybody else on this forum could respond fast.