Problem summary Users have found that Rendering a Timeline Comp under a Soft Effect, causes the rendered footage to be black.
This issue appears to only occur with PNG image sequences.
The footage is not actually rendered black ( It is correct within its file location ), but its Viewer look and thumbnail will be black.
Customer reported version nuke.11.2v5
Customer reported platform windows10
Steps to reproduce
1) Open a new project in NukeStudio/Hiero
2) Import an image sequence and drop it in the Timeline to create a new Sequence
3) Right Click the new clip and select "Effects -> Create Comp Special..."
4) Within the Create Comp Special window, select "Nuke basic Shot".
5) Within the Peset, select the Nuke Write and switch it to PNG:
6) Create the comp
7) In the Timeline, create a Grade node soft effect own its own channel, modify some of the knobs.
8) Double click the Comp TrackItem and within the Write node, Render the footage.
9) After the footage is rendered, scrub through the timeline.
Result: The new Nuke script may have a black Thumbnail and appear black. If the Track is fine, open the comp, version up, modify the script and render again.
Flipping between both Comp versions should display the black viewer issue.
Workaround Using another format such as EXR or DPX do not have black Viewer issues.
Reproduced by support
This bug has been reproduced in: Nuke11.3v1- Windows 7 - Mac10.13 - CentOS7 Nuke11.2v1 - Windows 7 Nuke11.1v1 - Windows 7 Nuke11.0v1 - Windows 7 Nuke10.5v1 - Windows 7 Nuke10.0v1 - Windows 7 Nuke9.0v1 - Windows 7 - Mac10.13 - CentOS7
Earliest version tested - This issue appears to be in all versions of the product
Expected behaviour No playback issues when rendering comps
Actual behaviour Rendered comps appear black within the timeline.
