Append function excludes Collections that do not contain Objects directly #92347

New Issue

Sven Stein · 2021-10-19T17:26:50+02:00

Sven Stein commented

2021-10-19 17:26:50 +02:00

System Information
Operating system: Windows-10-10.0.22478-SP0 64 Bits
Graphics card: AMD Radeon(TM) RX Vega 11 Graphics ATI Technologies Inc. 4.5.14761 Core Profile Context 21.30.19.01 30.0.13019.1006

Blender Version
Broken: version: 3.0.0 Alpha, branch: master, commit date: 2021-10-18 21:38, hash: d7b231baa8
Worked: 2.93.5
Caused by 3be5ce4aad

Short description of error
In Blender, when you append from an existing .blend file, it will not append all collections and thus destroy the structure of the collections with sub-collections.
Collections which only contain other collections but no Objects themselves will not be appended.

Before appending

Appending the parent collection

After appending. Collections have been skipped. The former structure has been destroyed.

Exact steps for others to reproduce the error

Create a .blend file with multiple collections, some contain objects, others just contain sub-collections or use this .blend file: collection with sub-collections.blend
Close your project, open a new project and try to append the .blend file with the collections inside to your new project.
You will notice, that only the Collections with Objects inside are kept. Other collections which only act as parent collections but don't contain Objects will be excluded. The Collection structure is not the same as before anymore.

**System Information** Operating system: Windows-10-10.0.22478-SP0 64 Bits Graphics card: AMD Radeon(TM) RX Vega 11 Graphics ATI Technologies Inc. 4.5.14761 Core Profile Context 21.30.19.01 30.0.13019.1006 **Blender Version** Broken: version: 3.0.0 Alpha, branch: master, commit date: 2021-10-18 21:38, hash: `d7b231baa8` Worked: 2.93.5 Caused by 3be5ce4aad **Short description of error** In Blender, when you append from an existing .blend file, it will not append all collections and thus destroy the structure of the collections with sub-collections. Collections which only contain other collections but no Objects themselves will not be appended. ![Screenshot 2021-10-19 171859.png](https://archive.blender.org/developer/F11287441/Screenshot_2021-10-19_171859.png) Before appending ![Screenshot 2021-10-19 171938.png](https://archive.blender.org/developer/F11287448/Screenshot_2021-10-19_171938.png) Appending the parent collection ![Screenshot 2021-10-19 172016.png](https://archive.blender.org/developer/F11287457/Screenshot_2021-10-19_172016.png) After appending. Collections have been skipped. The former structure has been destroyed. **Exact steps for others to reproduce the error** 1. Create a .blend file with multiple collections, some contain objects, others just contain sub-collections or use this .blend file: [collection with sub-collections.blend](https://archive.blender.org/developer/F11287309/collection_with_sub-collections.blend) 2. Close your project, open a new project and try to append the .blend file with the collections inside to your new project. 3. You will notice, that only the Collections with Objects inside are kept. Other collections which only act as parent collections but don't contain Objects will be excluded. The Collection structure is not the same as before anymore.

Sven Stein commented

2021-10-19 17:26:50 +02:00

Added subscriber: @HADESBLACK

Philipp Oeser commented

2021-10-20 15:08:01 +02:00

Added subscribers: @mont29, @lichtwerk

Philipp Oeser commented

2021-10-20 15:08:01 +02:00

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

Philipp Oeser commented

2021-10-20 15:08:01 +02:00

Can confirm, caused by 3be5ce4aad.

Reading comments this might actually be intended in that commit, but it certainly breaks the workflow described here.

@mont29: can this be restored?

Can confirm, caused by 3be5ce4aad. Reading comments this might actually be intended in that commit, but it certainly breaks the workflow described here. @mont29: can this be restored?

blender-admin commented

2021-10-20 15:21:24 +02:00

This issue was referenced by 2d46cef2e8

This issue was referenced by 2d46cef2e88730f40d8927a10102fa9e2a2d4ea3

Bastien Montagne commented

2021-10-20 15:31:16 +02:00

Changed status from 'Confirmed' to: 'Resolved'

Bastien Montagne closed this issue

2021-10-20 15:31:16 +02:00

Bastien Montagne self-assigned this 2021-10-20 15:31:16 +02:00

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Append function excludes Collections that do not contain Objects directly #92347