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Maniphest T93353

Reload Library Override file loses Constraints
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Description

System Information
Operating system: Windows-10-10.0.19043-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 2080 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 472.39

Blender Version
Broken: version: 3.0.0 Beta, branch: master, commit date: 2021-11-23 18:03, hash: rB3844e9dbe771
Worked: on some computers(!?) 2.93.6

Short description of error
Reloading Library override loses constraints on overridden objects. I wouldn't think this to be a bug if it wouldn't turn out it didn't happen on other computer with Blender before 3.0.
On some win10 machines it happens right away after Outliner->Reload, on others it takes Relocate+Reload or just Reload twice.
Also confirmed on Linux

Exact steps for others to reproduce the error

override_Suzanne.blend763 KBDownload

src_Suzanne.blend820 KBDownload

  • Open "override_Suzanne.blend"
  • Outliner -> Linked File -> Reload (constraints disappear in all versions but only on some Win10 machines)
  • Outliner -> Linked File -> Reload again (constraints dfisappear on all Win10 machines starting with 3.0 and some machines before 3.0)

Revisions and Commits

rB Blender
D13426rBcbc6c3938d18 Fix T93353: Reload Library Override file loses Constraints, take II.
D13426rBca6acceb606f Fix T93353: Reload Library Override file loses Constraints, take II.
D13426rBde7f1e8e070b Fix T93353: Reload Library Override file loses Constraints, take II.
rBe253fb2143e2 Fix T93353: Reload Library used as source for liboverride loses Constraints.

Related Objects

Event Timeline

Konstantins Visnevskis (kivig) created this task.Nov 24 2021, 12:14 PM
Gints Zilbalodis (gintszilbalodis) added a subscriber: Gints Zilbalodis (gintszilbalodis).Nov 24 2021, 12:16 PM
Philipp Oeser (lichtwerk) changed the task status from Needs Triage to Confirmed.Nov 24 2021, 2:14 PM
Philipp Oeser (lichtwerk) added a project: Core.
Philipp Oeser (lichtwerk) added subscribers: Bastien Montagne (mont29), Philipp Oeser (lichtwerk).

Can confirm.
Could have sworn this was tackled before, but can only find T90570: Constraint validity not updated with library overrides which afaict has the constraints not local.

@Bastien Montagne (mont29): does this ring a bell?

Philipp Oeser (lichtwerk) renamed this task from Reload Lybrary Override file loses Constraints to Reload Library Override file loses Constraints.Nov 24 2021, 2:14 PM
Sybren A. Stüvel (sybren) added a subscriber: Sybren A. Stüvel (sybren).Nov 25 2021, 1:55 PM

I can confirm this on blender-v3.0-release @ rB82808e18e6562e9c06626a4e938cb2ad4fa34a0f

Outliner -> Linked File -> Reload (constraints disappear in all versions but only on some Win10 machines)

This also happens here, on Linux. Also when I Relocate instead of Reload, the constraints are gone.

Philipp Oeser (lichtwerk) triaged this task as High priority.Nov 25 2021, 2:03 PM
Philipp Oeser (lichtwerk) updated the task description. (Show Details)

Let's dare setting this to High prio then?

Wovchik (microcoder) added a subscriber: Wovchik (microcoder).Nov 25 2021, 2:04 PM
Bastien Montagne (mont29) moved this task from Backlog to Blender 3.0 on the Core board.Nov 25 2021, 2:49 PM
Bastien Montagne (mont29) edited projects, added BF Blender (3.0); removed BF Blender.
Bastien Montagne (mont29) claimed this task.Nov 25 2021, 2:52 PM
Bastien Montagne (mont29) closed this task as Resolved by committing rBe253fb2143e2: Fix T93353: Reload Library used as source for liboverride loses Constraints..Nov 25 2021, 2:57 PM
Bastien Montagne (mont29) added a commit: rBe253fb2143e2: Fix T93353: Reload Library used as source for liboverride loses Constraints..
Konstantins Visnevskis (kivig) added a comment.Nov 29 2021, 10:33 AM

Tested with
3.0.0 Release Candidate, branch: master, commit date: 2021-11-27 18:08, hash: rBd2e608733507
and constraints still disappear.

Suzanne-src.blend798 KBDownload

Suzanne-lnk.blend740 KBDownload

  • Open Suzanne-lnk.blend
  • Outliner -> Reload on Suzanne-src.blend
Philipp Oeser (lichtwerk) added a comment.Nov 29 2021, 4:53 PM
In T93353#1261540, @Konstantins Visnevskis (kivig) wrote:

Tested with
3.0.0 Release Candidate, branch: master, commit date: 2021-11-27 18:08, hash: rBd2e608733507
and constraints still disappear.

Suzanne-src.blend798 KBDownload

Suzanne-lnk.blend740 KBDownload

  • Open Suzanne-lnk.blend
  • Outliner -> Reload on Suzanne-src.blend

Cannot reproduce in rB2206b6b9a04777b7325c8f30a49db23bc9a61317 (also not with the original files from the report)

Konstantins Visnevskis (kivig) added a comment.EditedNov 30 2021, 2:41 AM

Re-checked - it doesn't occur indeed except for situation when the override is created anew and the file wasn't closed (re-opened) since.

  • File->Link->"Suzanne-src.blend"->Collection->Collection
  • Object->Relations->Make Library Override
  • Add object constraint->Copy Location
  • Reload Library -> Constraint is gone
Sybren A. Stüvel (sybren) added a comment.Nov 30 2021, 12:24 PM
In T93353#1262074, @Konstantins Visnevskis (kivig) wrote:
  • File->Link->"Suzanne-src.blend"->Collection->Collection

"Collection" just contains an invisible camera. I'll assume this should be "Collection 2", as that contains Suzanne and thus actually has some visual content.

I can confirm this is still an issue when you don't save-and-reload the blend file.

Bastien Montagne (mont29) added a revision: D13426: Fix T93353: Reload Library Override file loses Constraints, take II..Nov 30 2021, 2:47 PM
Sybren A. Stüvel (sybren) mentioned this in D13426: Fix T93353: Reload Library Override file loses Constraints, take II..Nov 30 2021, 3:03 PM
Bastien Montagne (mont29) added a commit: rBde7f1e8e070b: Fix T93353: Reload Library Override file loses Constraints, take II..Nov 30 2021, 3:20 PM
Bastien Montagne (mont29) mentioned this in T77348: Blender LTS: Maintenance Task 2.83.Nov 30 2021, 3:29 PM
Bastien Montagne (mont29) mentioned this in T88449: Blender LTS: Maintenance Task 2.93.
Philipp Oeser (lichtwerk) added a commit: rBca6acceb606f: Fix T93353: Reload Library Override file loses Constraints, take II..Dec 7 2021, 4:23 PM
Philipp Oeser (lichtwerk) added a commit: rBcbc6c3938d18: Fix T93353: Reload Library Override file loses Constraints, take II..Jan 17 2022, 3:56 PM