Missing vrayUserAttributes added to a reference, when file opened through mayapy

[CopenhagenBombay]

Hi there,

I'm having an issue with vrayUserAttributes when opening files through mayapy.
It seems that any vrayUserAttributes that is applied to a reference within the scene, no longer exists when the scene is opened through mayapy.
I can access vrayUserAttributes saved in the referenced file.
I cannot expose the vrayUserAttribute using maya.mel.eval('vray addAttributesFromGroup "'namespace:name'" "vray_user_attributes" 1'), which work in standard maya.
I also get this warning when opening a file: "Warning: line 1: Scene-Metadata is not supported for referenced files." when opening the file in mayapy.

Is there any work around besides importing the reference?

[iliyana.vladeva]

Hello!
Unfortunately I cannot reproduce neither the warning you experience when opening a scene with a referenced file in mayapy nor the problem with vrayUserAttributes. Can you share more details about your scene setup or the commands you use?
In mayapy I suggest that you can try listing the scene nodes or ones of a certain type using:

maya.cmds.ls()

This way you will know the proper way to refer to a given node. In general, you would use "namespace:nodeName".
I have successfully added vrayUserAttributes and set a value in mayapy using the following code:

maya.mel.eval('vray addAttributesFromGroup "namespace:nodeName" "vray_user_attributes" 1')
maya.cmds.setAttr('namespace:nodeName.vrayUserAttributes', 'color=0,0,1;', type="string")