ID 390676 - Rendering ProRes files from Nuke can result in lines across the image

Problem summary
Rendering ProRes files from Nuke can result in lines across the image.

This issue appears to happen with ProRes 422 and ProRes 4444 codecs but not other codecs, such as H264 or DNxHD.

 

Customer reported version
Nuke 11.2v4

 

Customer reported platform
macOS 10.12 (Sierra)

 

Steps to reproduce

 

1) Write out a .mov file and ensure that the codec is set to ProRes 4444 or ProRes 422

2) Read the file back in and you should be able to lines across the image, like so:  

 

​

3) Increasing the contrast of the image may also make the lines easier to see.

 

There is also a script attached which demonstrates this issue.

 

Expected behaviour
These kinds of artefacts should not be visible on the image. 

 

Actual behaviour
Rendering Prores 4444 or Prores 422 files from Nuke produces lines across the image.

 

Reproduced by support
This bug has been reproduced in:

Nuke 12.1v1 - Windows 10

Nuke 11.3v3 - WIndows 10 - macOS 10.12 (Sierra) - Linux CentOS 6

Nuke 11.3v1 - WIndows 10

Nuke 11.2v1 - WIndows 10

Nuke 11.1v1 - WIndows 10

Nuke 11.0v1 - WIndows 10

Nuke 10.5v1 - WIndows 10

Nuke 10.0v1 - WIndows 10

Nuke 9.0v1 - WIndows 10 - macOS 10.12 (Sierra) - Linux CentOS 6

 

Unable to reproduce bug in:
Nuke 8.0v7 - Windows 10 - macOS 10.12 (Sierra) - Linux CentOS 6

 

Earliest version tested
Nuke 8.0v7

-ProRes files cannot be rendered in Nuke 8