Objects can be moved or linked into linked collections (causing them to disappear after file reload) #76710

New Issue

Alexander Dumproff · 2020-05-13T08:50:05+02:00

2020-05-13 08:50:05 +02:00

System Information
Operating system: Windows-7-6.1.7601-SP1 64 Bits
Graphics card: Quadro 5000/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 377.83

Blender Version
Broken: version: 2.82 (sub 7), branch: master, commit date: 2020-03-12 05:06, hash: 375c7dc4ca
Worked: (optional)

Short description of error
Objects can be linked to linked collections (causing them to disappear after file reload)

Exact steps for others to reproduce the error
The reference file:
The_Monkey_Ref_Library.blend
... and the file in which the models are referenced:
ReferencedFile.blend

Steps:

LINK the "SuzanneCollection" from the Reference file in a new, empty file
search for "overide" in the function search box and make a library override
select one of the objects from the list
Delete the SuzanneCollection Empty from the Scene:
Create a Polygon Object in the main Collection "Collection"
Drag this object into the Suzanne Collection:
Save and Reload the File

The Cube Object is gone.

**System Information** Operating system: Windows-7-6.1.7601-SP1 64 Bits Graphics card: Quadro 5000/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 377.83 **Blender Version** Broken: version: 2.82 (sub 7), branch: master, commit date: 2020-03-12 05:06, hash: `375c7dc4ca` Worked: (optional) **Short description of error** Objects can be linked to linked collections (causing them to disappear after file reload) **Exact steps for others to reproduce the error** The reference file: [The_Monkey_Ref_Library.blend](https://archive.blender.org/developer/F8532797/The_Monkey_Ref_Library.blend) ... and the file in which the models are referenced: [ReferencedFile.blend](https://archive.blender.org/developer/F8532796/ReferencedFile.blend) Steps: 1. LINK the "SuzanneCollection" from the Reference file in a new, empty file 2. search for "overide" in the function search box and make a library override 3. select one of the objects from the list 4. Delete the SuzanneCollection Empty from the Scene: ![image.png](https://archive.blender.org/developer/F8532786/image.png) 5. Create a Polygon Object in the main Collection "Collection" 6. Drag this object into the Suzanne Collection: ![image.png](https://archive.blender.org/developer/F8532792/image.png) 7. Save and Reload the File - > The Cube Object is gone.

Alexander Dumproff commented

2020-05-13 08:50:05 +02:00

Added subscriber: @A.Lex_3D

Philipp Oeser commented

2020-05-13 14:12:31 +02:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2020-05-13 14:12:31 +02:00

Changed status from 'Needs Triage' to: 'Needs User Info'

Philipp Oeser commented

2020-05-13 14:12:31 +02:00

It would be good to at least share the library as well as the main .blend file of what you are showing in the video in order to have a chance to reproduce this quickly.
Also please take the time to write down the exact steps to reproduce [having to go through the pixelated video does not help that much here...]

It would be good to at least share the library as well as the main .blend file of what you are showing in the video in order to have a chance to reproduce this quickly. Also please take the time to write down the exact steps to reproduce [having to go through the pixelated video does not help that much here...]

Alexander Dumproff commented

2020-05-13 14:43:43 +02:00

Ah sorry - here are the files from the video:
The reference file: The_Monkey_Ref_Library.blend
... and the file in which the models are referenced:
ReferencedFile.blend

Steps:

LINK the "SuzanneCollection" from the Reference file in a new, empty file
search for "overide" in the function search box and make a library override
select one of the objects from the list
Delete the SuzanneCollection Empty from the Scene:
Create a Polygon Object in the main Collection "Collection"
Drag this object into the Suzanne Collection:
Save and Reload the File

The Cube Object is gone.

I was unfortunately not able to reproduce the bug where one of the referenced files was removed and replaced by a copy of one of the other files
In that scenario for example 'Bob' would be missing but 'Lisa' would then be instanced twice (in the same spot).
Reloading the file would then remove more other instances and duplicate 'Lisa' several more times.

Ah sorry - here are the files from the video: The reference file: [The_Monkey_Ref_Library.blend](https://archive.blender.org/developer/F8532797/The_Monkey_Ref_Library.blend) ... and the file in which the models are referenced: [ReferencedFile.blend](https://archive.blender.org/developer/F8532796/ReferencedFile.blend) Steps: 1. LINK the "SuzanneCollection" from the Reference file in a new, empty file 2. search for "overide" in the function search box and make a library override 3. select one of the objects from the list 4. Delete the SuzanneCollection Empty from the Scene: ![image.png](https://archive.blender.org/developer/F8532786/image.png) 5. Create a Polygon Object in the main Collection "Collection" 6. Drag this object into the Suzanne Collection: ![image.png](https://archive.blender.org/developer/F8532792/image.png) 7. Save and Reload the File - > The Cube Object is gone. I was unfortunately not able to reproduce the bug where one of the referenced files was removed and replaced by a copy of one of the other files In that scenario for example 'Bob' would be missing but 'Lisa' would then be instanced twice (in the same spot). Reloading the file would then remove more other instances and duplicate 'Lisa' several more times.

Philipp Oeser commented

2020-05-13 15:39:59 +02:00

Changed status from 'Needs User Info' to: 'Confirmed'

Philipp Oeser commented

2020-05-13 15:39:59 +02:00

Can confirm.

I think we should not be able to drag an object to a linked collection in the outliner?
I also think we should not be able to create a new object in a linked collection (adding an object will put it in that linked collection if that collection is selected in the outliner...)

Can confirm. - I think we should not be able to drag an object to a linked collection in the outliner? - I also think we should not be able to create a new object in a linked collection (adding an object will put it in that linked collection if that collection is selected in the outliner...)

Philipp Oeser commented

2020-05-13 15:41:20 +02:00

I will constrain this report to your last comments (since the "piling up weird behaviours over time" is a bit too vague...)
Will update the report description accordingly.

I will constrain this report to your last comments (since the "piling up weird behaviours over time" is a bit too vague...) Will update the report description accordingly.

Philipp Oeser changed title from ~~OVerriden Library piling up weird behaviours over time~~ to Objects can be linked to linked collections (causing them to disappear after file reload)

2020-05-13 15:45:47 +02:00

Philipp Oeser changed title from ~~Objects can be linked to linked collections (causing them to disappear after file reload)~~ to Objects can be moved or linked into linked collections (causing them to disappear after file reload)

2020-05-13 16:04:27 +02:00

Philipp Oeser self-assigned this 2020-05-13 16:24:30 +02:00

blender-admin commented

2020-05-13 17:30:39 +02:00

This issue was referenced by 0a32f6c868

This issue was referenced by 0a32f6c8686c6a14a052f5b254655b3b69a581e3

Philipp Oeser commented

2020-05-15 13:46:34 +02:00

Changed status from 'Confirmed' to: 'Resolved'

Philipp Oeser closed this issue

2020-05-15 13:46:34 +02:00

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Objects can be moved or linked into linked collections (causing them to disappear after file reload) #76710