·         Using different cameras all shooting at 60fps 1080hd. Gopro 8, Panasonic hcx900m. canon m50.

·         I edit in vegas 14. Timeline is 24fps, 8 bit setting.

·         Disable resample, best quality, gagassian blur all clicked.

·         Rendering bit rate set at 50million  and average at 28million, quality best. Mp4 format.

·         The problem I encounter is that at 23.9,24(film) and 25fps rendered (and preview) video is blocky/choppy on panning shots especially. Still shots and talking to camera is okay.

·         Render (and preview at 50 and 59.9 fps gives me video with vertical lines on panning and movement shots.

I would like to know how to fix this issue? Please advise

Thank you

Ali