Simple scene created in version 2.82 crashes Blender #77460

New Issue

Ajlan Altug · 2020-06-05T19:30:48+02:00

Ajlan Altug commented

2020-06-05 19:30:48 +02:00

System Information
Operating system: Windows-10-10.0.18362-SP0 64 Bits
Graphics card: GeForce GTX 760/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 445.87

Blender Version
Broken: version: 2.83.0, branch: master, commit date: 2020-06-03 14:38, hash: 211b6c29f7
Worked: 2.82

Just open the included scene file which contains nothing but shaded objects with modifiers and Blender will crash

CHESS_PROPS_FINAL_01.blend

**System Information** Operating system: Windows-10-10.0.18362-SP0 64 Bits Graphics card: GeForce GTX 760/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 445.87 **Blender Version** Broken: version: 2.83.0, branch: master, commit date: 2020-06-03 14:38, hash: `211b6c29f7` Worked: 2.82 Just open the included scene file which contains nothing but shaded objects with modifiers and Blender will crash [CHESS_PROPS_FINAL_01.blend](https://archive.blender.org/developer/F8580067/CHESS_PROPS_FINAL_01.blend)

Ajlan Altug commented

2020-06-05 19:30:48 +02:00

Added subscriber: @ajlanaltug

blender-admin commented

2020-06-05 19:30:48 +02:00

#77894 was marked as duplicate of this issue

blender-admin commented

2020-06-05 19:30:48 +02:00

#77595 was marked as duplicate of this issue

blender-admin commented

2020-06-05 19:30:48 +02:00

#77557 was marked as duplicate of this issue

Ankit Meel changed title from ~~Simple scene created in version 2.82 crashes Blender???!!!!~~ to Simple scene created in version 2.82 crashes Blender

2020-06-05 19:55:13 +02:00

Alaska commented

2020-06-06 01:37:27 +02:00

Added subscriber: @Alaska

Alaska commented

2020-06-06 01:37:27 +02:00

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

Alaska commented

2020-06-06 01:37:27 +02:00

Opening the file in 2.82a shows a dependency cycle:

Dependency cycle detected:
  OBLAMP/Transform Component/TRANSFORM_FINAL() depends on
  OBLAMP/Transform Component/TRANSFORM_FINAL() via 'Dupligroup'
Dependency cycle detected:
  OBCHAIR.001/Transform Component/TRANSFORM_FINAL() depends on
  OBCHAIR.001/Transform Component/TRANSFORM_FINAL() via 'Dupligroup'

I suspect Blender 2.83 is crashing because of this. @ajlanaltug try to remove these dependency cycles from the 2.82a file, save it, then re-open in Blender 2.83.

In the meantime, I'm marking this as "confirmed" as I consider this a regression.

Opening the file in 2.82a shows a dependency cycle: ``` Dependency cycle detected: OBLAMP/Transform Component/TRANSFORM_FINAL() depends on OBLAMP/Transform Component/TRANSFORM_FINAL() via 'Dupligroup' Dependency cycle detected: OBCHAIR.001/Transform Component/TRANSFORM_FINAL() depends on OBCHAIR.001/Transform Component/TRANSFORM_FINAL() via 'Dupligroup' ``` I suspect Blender 2.83 is crashing because of this. @ajlanaltug try to remove these dependency cycles from the 2.82a file, save it, then re-open in Blender 2.83. In the meantime, I'm marking this as "confirmed" as I consider this a regression.

Ajlan Altug commented

2020-06-06 06:30:41 +02:00

Ok will do. Thank you. Just a quick note though; what I did in that scene was just to create collection instances and transform them. I redid the whole thing from scratch in 2.83, saved it and it opens just fine.

Bastien Montagne commented

2020-06-08 15:53:19 +02:00

Added subscriber: @mont29

Bastien Montagne commented

2020-06-08 15:53:19 +02:00

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

Bastien Montagne commented

2020-06-08 15:53:19 +02:00

The issue here is that the CHAIR collection contains the CHAIR.001 object, which instantiate the CHAIR collection... making depsgraph building loop forever.

Not sure we are supposed to handle that situation, this is not allowed ever, so real bug here is that you managed to create such a broken relationship. We need to know how you did it?

The issue here is that the `CHAIR` collection contains the `CHAIR.001` object, which instantiate the `CHAIR` collection... making depsgraph building loop forever. Not sure we are supposed to handle that situation, this is not allowed ever, so real bug here is that you managed to create such a broken relationship. We need to know how you did it?

Bastien Montagne commented

2020-06-08 17:35:07 +02:00

Added subscribers: @rpopovici, @Zuorion-4, @ideasman42

Bastien Montagne self-assigned this 2020-06-15 16:21:59 +02:00

Bastien Montagne commented

2020-06-15 16:21:59 +02:00

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