Flickering green/black strip on right hand side of export

Question

I have an issue where exports from Premiere (CC 2017.1.2 on OS X High Sierra) have a flickering artifact on the right hand side.

The footage was created on a Canon C300 MkII, and ingested into Prelude (CC 2017.1.2 on OS X High Sierra) with NO transcoding.

Footage underwent a bit of basic stuff (timeline cutting, grading etc).

Playback in Premiere is perfect, NO flickering artifact.

I then go Premiere -> Export Media.

"Source" shows as "4096x2160(1.0), 25fps, Progressive, 48kHz, Stereo".

I have tried "Format H.264, Preset Match Source - High Bitrate" preset (which shows "Output" 4096x2160(1.0), 25fps, Progressive, 48kHz, Stereo") and this yields green flickering on the right hand side.

I have tried the "H.264 YouTube 2160p 4K" preset which shows output (which shows "Output" 4096x2160(1.0), 25fps, Progressive, 48kHz, Stereo") and this yields black flickering on the right hand side.

I have tried exporting using "maximum render quality", this makes no difference.

I have uploaded a short screen capture video to show what I mean:

https://vimeo.com/237375317

Iancu Ilies · Answer

I have the same problem. A black flickering stripe appears when I export 4k (4096) footage. I found a solution, scaling the original footage to 100,5. It seems Premiere pro cannot interpret 4k footage on my brand new highest spec MacBook Pro. I do not have the same problem on Davinci Resolve and since the grading was mostly done there after Adobe took away Speedgrade, I find myself using Premiere less every day. Sad after so many years spent learning and using a system!

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