Strange noise pattern!

Why is my sensor behaving like this. Why am I getting these dark dots in my shot. 

I had the same, but only in Pixboom Cine. When I have the clips exported, everything was fine.

This is from the exported file, it’s a prores 422 HQ

Try exporting as DNG and see whether the issue is still there. The sky artifacts look more like extra digital image processing than a problem with the raw sensor data.

Did you fix this?