Hi, I have a GoPro 5 and took a sample video and uploaded it to Google: (Right out of the camera)
https://drive.google.com/file/d/1tOe2CUFXcUsCx0OEfK1o6B1I0f4DVssq/view?usp=sharing
I need help with artifacts and blocking in the video. I took this yesterday. I shot in 2.7K 60fps. The video looks good, I rendered it with a higher bitrate and it looks good on my computer.