ID 510025 - nuke.layers() no longer returns the layers correctly

Problem summary
nuke.layers() no longer returns the layers correctly

Customer reported version
nuke.13.2v2

Customer reported platform
windows11

Steps to reproduce

1) Open Nuke

2) Read in the attached astonMartin_multiChannel.exr file

3) Select the Read node, then run the following code in the Script Editor:

print(nuke.layers(nuke.selectedNode()))

Expected behaviour

For Nuke to print all the layers in the image:

print(nuke.layers(nuke.selectedNode())) # Result: ['rgb', 'rgba', 'alpha', 'depth', 'Body_Wheels_Tires_Sel_Mask', 'Frenel_VRayFresnel3', 'GI', 'Glass_Selection_Mask', 'UV_s_ramp1', 'VRayDirt1', 'background', 'diffuse', 'lighting', 'matteShadow', 'rawGI', 'rawLight', 'rawReflection', 'rawRefraction', 'reflect', 'reflectionFilter', 'refract', 'refractionFilter', 'sampleRate', 'selfIllum', 'shadow', 'specular', 'velocity']

Actual behaviour
Nuke only prints some layers correctly on Windows:

print(nuke.layers(nuke.selectedNode())) # Result: ['', '', '', '', 'Body_Wheels_Tires_Sel_Mask', 'Frenel_VRayFresnel3', '', 'Glass_Selection_Mask', '', '', '', '', '', '', '', '', '', '', '', 'reflectionFilter', '', 'refractionFilter', '', '', '', '', ''] 

Or returns an error on macOS:

print(nuke.layers(nuke.selectedNode())) # Result: SystemError: /Users/Shared/workspace/CreatePackageVFX20/.conan/data/Python/3.7.7/thirdparty/development/build/03db91a62823ebc2b1df6e5cf549c2f674116656/Python_src/Objects/listobject.c:305: bad argument to internal function The above exception was the direct cause of the following exception: Traceback (most recent call last):   File “<string>“, line 1, in <module> SystemError: <built-in function layers> returned a result with an error set

Workaround

You can use nuke.channels() to get all the channels, then strip those down to just the layers, for example:

newLayers = ['rgb', 'rgba', 'alpha'] for c in nuke.channels(nuke.selectedNode()):     layerName = c[:c.rfind(".")]     if layerName not in newLayers:         newLayers.append(layerName) print(newLayers)

Reproduced by support
Guidance: Have you reproduced the problem? In which versions have you reproduced the problem? DELETE THIS LINE

This bug has been reproduced in:

Nuke 13.1v5
Nuke 13.2v4 - Windows 10, macOS 12

Nuke 13.2v1 - Windows 10, macOS 12* - regression

Unable to reproduce bug in:

Nuke 13.2v4 - CentOS 7
Nuke 13.1v5 - Windows 10

*In Nuke 13.2v1 on macOS, you have run the command twice to see the error, other Nuke 13.2 versions you see it the first time you run the code

Earliest version tested

Nuke 13.1v3 - This issue doesn't appear in this version and has regressed