ID 340327 - Rendered single frame comps cannot be exported due to the error: Unable to transcode, some clips being transcoded are in error state (perhaps colorspace is invalid)

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Problem summary
Rendered single frame comps cannot be exported due to the error: Unable to transcode, some clips being transcoded are in error state (perhaps colorspace is invalid)


The comp needs to contain an image with a frame number which is not 0 to encounter this issue. 

Customer reported version
nuke.11.1v2

Customer reported platform
windows10

Steps to reproduce

1) Open Nuke Studio

2) Import attached image

3) Add it to a new sequence in the timeline

4) Right click the shot> Effects> Create comp, and set the project directory to a local directory

5) Right click the comp > Render comp

6) Right click the comp > Export > Export...

7) In the export dialog, Process as Sequence and set the export preset to Log10 Cineon DPX

8) Press Export, and a dialog windows appears saying "Unable to transcode, some clips being transcoded are in error state (perhaps colorspace is invalid):"




Workaround
If the image doesn't have a frame number, or has the frame number 0, then the issue does not appear.

Reproduced by support
This bug has been reproduced in:
Nuke Studio 11.1v2 - Windows 10 - CentOS 6.8 - MacOSX 10.13

Unable to reproduce bug in:
Nuke Studio 11.1v1 - Windows 10 - CentOS 6.8 - MacOSX 10.13
However the frame could not be rendered due to a related bug

Earliest version tested
Nuke Studio 11.1v1 - This issue no longer appears in this version and has regressed

Expected behaviour
For Nuke to be able to render single frame comps

Actual behaviour
An error message dialog popped up saying "Unable to transcode, some clips being transcoded are in error state (perhaps colorspace is invalid):"

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