ID 593316 - Apple ProRes renders with missing scanlines on Linux

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Problem summary
Apple ProRes renders with missing scanlines on Linux
 
This issue seems to be intermittent but reproducible 
 
it doesn't seem to happen with -m 1, so may be threading related


tested with both 4444 and 442 codecs and reproduced
 
Customer reported version
nuke.14.1v4 colorway.n/a
 
Customer reported platform
centos7
 
Steps to reproduce
 
1) Launch Nuke

2) Open the attached Nuke script

3) Render 1500 frames with the Write node
 
4) Read the image back and check each frame for missing scanlines*
 
There's an automated tool in the Nuke script to find missing scanlines
 
Expected behaviour
For Nuke to write all the scanlines on every frame
 
Actual behaviour
Randomly on different frame, different scanlines are missing from the render:
 

 
Workaround
If you render with -m 1, the missing scanlines don't seem to appear, however renders go from 3 minutes to 50 minuets, so it's not a good workaround
 
Reproduced by support
This bug has been reproduced in:
Nuke 15.1v5 - Rocky 9.3
Nuke 13.2v8 - CentOS 7
 
Unable to reproduce bug in:
Nuke 15.1v5 - Windows 10, macOS Monterey
Nuke 13.0v1 - CentOS 7
 
*regresses between Nuke 13 versions somewhere, but could not test futher
 
Earliest version tested
Nuke Nuke 13.0v1  - This issue doesn't appear in this version and has regressed
 

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