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Compositor: In Blender 292 "Set Alpha" node is undefined
Closed, ResolvedPublic

Description

System Information
Operating system: MacOs

Blender Version
Broken: version: 2.92.0 Alpha, branch: master, commit date: 2021-01-11 21:30, hash: acbda123ad08, type: Release
Worked: 2.91

Short description of error
291: open compositor, add SetAlpha node and wrap it in group.
292: open file and check node - it will be red and "undefined"

See screenshots and attached blend

Event Timeline

Robert Guetzkow (rjg) changed the task status from Needs Triage to Confirmed.Jan 12 2021, 7:11 PM

That is an issue in the versioning code added in rB9dbea1db66da5e277e8279811d66096751f38d29. Instead of iterating over the current compositor node tree, it should probably use FOREACH_NODETREE_BEGIN (bmain, ntree, id) to also handle the node groups @Jeroen Bakker (jbakker) .