Unpredictable Library Override Collection Behavior on Updating/Relocating a Linked Library #86883

New Issue

Tristan · 2021-03-24T11:15:54+01:00

Tristan commented

2021-03-24 11:15:54 +01:00

System Information
Operating system: Linux-5.4.0-67-generic-x86_64-with-debian-bullseye-sid 64 Bits
Graphics card: GeForce GTX 1070 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 460.39

Blender Version
Broken: version: 2.92.0, branch: master, commit date: 2021-02-24 16:25, hash: 02948a2cab
Worked: NA

Short description of error
Upon updating an asset (either through the Outliner "Relocate" operator or exchanging the source file), any Library Override collection with simple hierarchical changes (new nested collections, new objects, changed names) will fail to replicate the structure of the source collection and show a variety of unpredictable outcomes; e.g. duplicate collections, duplicate objects, missing collections, missing objects, missing override pointers, etc.

Exact steps for others to reproduce the error
Extract attached .blend file
suzanne_local_override.zip

Open "sh010_animation_v001.blend".
Navigate to the Outliner in "Blender File" mode, find the linked library "//CHR-suz_v001.blend"
Right click, "Relocate" to "//CHR-suz_v002.blend" in the same folder. (Alternatively, rename the v002 file to v001 and Revert)
The Library Override will not be properly updated.

I also noticed that local constraints on Pose Bones are built before new constraints that may have been added to the source Armature;
In my experience, local constraints should always be added after the armature's "internal" constraints.

I'm assuming this is the designated way to update assets. Are library overrides not meant to be viable in this way?
In production, we usually start with "crude" character rigs for the layout department and update them to be more detailed over the course of the film, creating many more collections and objects. Updates like this should be supported by Library Overrides without rebuilding the whole shot from scratch; especially when layout artists/animators already created complex constraints/interactions between assets that need to be carried over.

**System Information** Operating system: Linux-5.4.0-67-generic-x86_64-with-debian-bullseye-sid 64 Bits Graphics card: GeForce GTX 1070 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 460.39 **Blender Version** Broken: version: 2.92.0, branch: master, commit date: 2021-02-24 16:25, hash: `02948a2cab` Worked: NA **Short description of error** Upon updating an asset (either through the Outliner "Relocate" operator or exchanging the source file), any Library Override collection with simple hierarchical changes (new nested collections, new objects, changed names) will fail to replicate the structure of the source collection and show a variety of unpredictable outcomes; e.g. duplicate collections, duplicate objects, missing collections, missing objects, missing override pointers, etc. **Exact steps for others to reproduce the error** Extract attached .blend file [suzanne_local_override.zip](https://archive.blender.org/developer/F9906869/suzanne_local_override.zip) - Open "sh010_animation_v001.blend". - Navigate to the Outliner in "Blender File" mode, find the linked library "//CHR-suz_v001.blend" - Right click, "Relocate" to "//CHR-suz_v002.blend" in the same folder. (Alternatively, rename the v002 file to v001 and Revert) - The Library Override will not be properly updated. I also noticed that local constraints on Pose Bones are built **before** new constraints that may have been added to the source Armature; In my experience, local constraints should always be added **after** the armature's "internal" constraints. I'm assuming this is the designated way to update assets. Are library overrides not meant to be viable in this way? In production, we usually start with "crude" character rigs for the layout department and update them to be more detailed over the course of the film, creating many more collections and objects. Updates like this should be supported by Library Overrides without rebuilding the whole shot from scratch; especially when layout artists/animators already created complex constraints/interactions between assets that need to be carried over.

Tristan commented

2021-03-24 11:15:54 +01:00

Added subscriber: @Plyro

Tristan changed title from ~~Unpredictable Local Override Collection Behavior on Updating/Relocating a Linked Library~~ to Unpredictable Library Override Collection Behavior on Updating/Relocating a Linked Library

2021-03-24 11:20:51 +01:00

Germano Cavalcante commented

2021-03-26 18:25:21 +01:00

Added subscriber: @mano-wii

Germano Cavalcante commented

2021-03-26 18:25:21 +01:00

Changed status from 'Needs Triage' to: 'Confirmed'

Germano Cavalcante commented

2021-03-26 18:25:21 +01:00

Thanks for the report, I can confirm.
You have to reload the //CHR-suz_v002.blend lib for an complete relocation (apparently).
The console did not show anything abnormal, so I am confirming the bug.

Thanks for the report, I can confirm. You have to reload the `//CHR-suz_v002.blend` lib for an complete relocation (apparently). The console did not show anything abnormal, so I am confirming the bug.

Bastien Montagne commented

2021-03-29 11:06:35 +02:00

Added subscriber: @mont29

Bastien Montagne self-assigned this 2021-03-29 11:06:35 +02:00

Bastien Montagne commented

2021-03-29 11:06:35 +02:00

Hrmm, this should likely use auto-resync as well... more like a todo than a bug though, this workflow has not really been tested yet.

blender-admin commented

2021-08-13 16:34:06 +02:00

This issue was referenced by 5225e459da

This issue was referenced by 5225e459da07b10b5d1a77f74fed2d3df1fee594

Bastien Montagne commented

2021-08-13 16:40:10 +02:00

Changed status from 'Confirmed' to: 'Resolved'

Bastien Montagne closed this issue

2021-08-13 16:40:10 +02:00

Thomas Dinges added this to the 3.0 milestone 2023-02-08 15:59:28 +01:00

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Unpredictable Library Override Collection Behavior on Updating/Relocating a Linked Library #86883