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UV Map renaming bug in Cycles UV Map node
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Description

System Information
Windows 8.1, NVIDIA GeForce GTX 960

Blender Version
Broken: 2.76b

Short description of error
When you manually change the name of a UV map in the UV Maps panel in the Object Data context, Cycles´ UV Map node does not pick up the name change, and it gives an unwanted effect-for example, any texture applied through

the UV map appears as black.

Exact steps for others to reproduce the error
Open new file. Create a cube. Assign a UV map in Object Data context. Assign new material to object (in Cycles). In Node window, add an Input/UV Map node. Select newly created UV map in UV Map node. In Object Data context, change UV map´s name. Change is not reflected in UV Map node.

Details

Type
Bug

Event Timeline

Andreu Cabré (andreu) raised the priority of this task from to Needs Triage by Developer.
Andreu Cabré (andreu) updated the task description. (Show Details)
Andreu Cabré (andreu) set Type to Bug.
Brecht Van Lommel (brecht) claimed this task.

I agree that we should do this ideally, but this kind of automatic renaming support was just never implemented. Not for the UV Map node but also not for any other kind of UV Map usage.

It would be good to support this but it's not considered a bug.

I agree it's not a bug strictly speaking. But, if you check most everywhere else in Blender's UI behavior, this kind of automatic name update for referenced items seems to be the norm.