`dedup` removes Animations in Slotted Action unless `keepUniqueNames` true

[FrostKiwi]

Since Blender 4.4, Blender supports GLTF Export for Slotted Actions https://docs.blender.org/manual/en/latest/animation/actions.html

Aka, Object Hand Grabs Object Bottle used to be two different actions which would have to be played in sync manually, now Bottle Action is a slot in the Hand's Grab Action and they play in sync automatically.

This works great, but dedup() removes those "child" slotted actions, removing the Bottle's Animation fully, unless you set dedup( { keepUniqueNames: true } ).

I think this is a Bug, as Slotted Actions should not be considered duplicate, even if they are accessed the same way.

Expected behavior
Unique Animation data should not be deduped

Versions:

• Version: 4.2.1
• Environment: nodeJS

[donmccurdy]

Hi @FrostKiwi! I agree this sounds like a bug, but I'm not so familiar with this feature in Blender, or what output it's generating in the glTF file. Is there an example .blend or input .glb that you could share?