Blender crashes when enabling "Donut" Collection #79665

New Issue

Amin Shazrin · 2020-08-09T11:25:47+02:00

Amin Shazrin commented

2020-08-09 11:25:47 +02:00

System Information
Operating system: Darwin-19.6.0-x86_64-i386-64bit 64 Bits
Graphics card: AMD Radeon Pro 5500M OpenGL Engine ATI Technologies Inc. 4.1 ATI-3.10.15

Blender Version
Broken: version: 2.83.4, branch: master, commit date: 2020-08-05 06:00, hash: c113af8288
Worked: (newest version of Blender that worked as expected)

Short description of error
As the title above, the app crashes instantly when I want to enable my "Donut" Collection. I can't continue my work from here. It is really frustrating experience that I can't even continue my work from there.

Exact steps for others to reproduce the error

Open donut.blend file
Enable "Donut" Collection
Expect crashes instantly with error produced.

Donut.zip

**System Information** Operating system: Darwin-19.6.0-x86_64-i386-64bit 64 Bits Graphics card: AMD Radeon Pro 5500M OpenGL Engine ATI Technologies Inc. 4.1 ATI-3.10.15 **Blender Version** Broken: version: 2.83.4, branch: master, commit date: 2020-08-05 06:00, hash: `c113af8288` Worked: (newest version of Blender that worked as expected) **Short description of error** As the title above, the app crashes instantly when I want to enable my "Donut" Collection. I can't continue my work from here. It is really frustrating experience that I can't even continue my work from there. **Exact steps for others to reproduce the error** 1. Open donut.blend file 2. Enable "Donut" Collection 3. Expect crashes instantly with error produced. [Donut.zip](https://archive.blender.org/developer/F8762355/Donut.zip)

Amin Shazrin commented

2020-08-09 11:25:47 +02:00

Added subscriber: @Ammein

blender-admin commented

2020-08-09 11:25:47 +02:00

#79451 was marked as duplicate of this issue

blender-admin commented

2020-08-09 11:25:47 +02:00

#80724 was marked as duplicate of this issue

Robert Guetzkow commented

2020-08-09 11:39:28 +02:00

Added subscribers: @ideasman42, @rjg

Robert Guetzkow commented

2020-08-09 11:39:28 +02:00

@ideasman42 This is the same as #79451.

@Ammein After which step in the tutorial (timestamp in the video) does this issue occur?

@ideasman42 This is the same as #79451. @Ammein After which step in the tutorial (timestamp in the video) does this issue occur?

Amin Shazrin commented

2020-08-09 11:46:54 +02:00

At 0.04 seconds. Same behaviour as the video provides. I was following tutorial on this link from Andrew Price:
Part 3, Level 2: Texture Painting - Blender Beginner Tutorial

When I finish the previous Tutorial on Part 3, Level 1. After the Cup Tutorial, Andrew Price is now begin to continue on doing finishing on Donut Tutorials. And as I was continue to enable Donut Collection, it crashes immediately. @rjg

At 0.04 seconds. Same behaviour as the video provides. I was following tutorial on this link from Andrew Price: [Part 3, Level 2: Texture Painting - Blender Beginner Tutorial](https://www.youtube.com/watch?v=nht2RoYBUfA) When I finish the previous Tutorial on Part 3, Level 1. After the Cup Tutorial, Andrew Price is now begin to continue on doing finishing on Donut Tutorials. And as I was continue to enable Donut Collection, it crashes immediately. @rjg

Philipp Oeser commented

2020-08-10 13:18:25 +02:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2020-08-10 13:18:25 +02:00

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

Philipp Oeser commented

2020-08-10 13:18:25 +02:00

This is indeed a corrupt mesh: Torus.005

You can check by appending this mesh [not the object!] and run this in the python console

bpy.data.meshes['Torus.005'].validate(verbose=True)

This spits out a huge list of why this is a garbled mesh.
I also recall this being reported before, so it would definitely be good to isolate which part of the tutorial might cause this...

Note: if the cause of this cannot be determined, we usually close these kinds of reports:

Thanks for the report. Unfortunately unless there are clear instructions on how to reproduce it from scratch we cannot debug this any further.
Things that may cause mesh corruption: Importers, development versions of Blender, modeling tools.

Will keep this open for now and would kindly ask for trying to troubleshoot this (e.g. by going through that tutorial again and trying to isolate when above .validate() function starts to report issues)

This is indeed a corrupt mesh: `Torus.005` You can check by appending this mesh [not the object!] and run this in the python console ``` bpy.data.meshes['Torus.005'].validate(verbose=True) ``` This spits out a huge list of why this is a garbled mesh. I also recall this being reported before, so it would definitely be good to isolate which part of the tutorial might cause this... Note: if the cause of this cannot be determined, we usually close these kinds of reports: > Thanks for the report. Unfortunately unless there are clear instructions on how to reproduce it from scratch we cannot debug this any further. > Things that may cause mesh corruption: Importers, development versions of Blender, modeling tools. Will keep this open for now and would kindly ask for trying to troubleshoot this (e.g. by going through that tutorial again and trying to isolate when above `.validate()` function starts to report issues)

Amin Shazrin commented

2020-08-10 16:34:27 +02:00

Hey @lichtwerk , I run that python script on python console and indeed blender start to crashed. However, when I open my "Archived" Collection, my donut seems fine without materials, particles and shading.

These links are maybe causing the issue when I was following the tutorials:
Particles on Donut
Random Materials on Particles
Procedural Displacement

I maybe can conclude the possibility of the bug may occur when:

Hide the Collection,
Save the file
Exit
Open Blender file again.
Try create new object
move to new collection.
Working on other object first.
Then hide that new object.
After that, try to enable Donut again after finishes all the tutorials above.

Hey @lichtwerk , I run that python script on python console and indeed blender start to crashed. However, when I open my "Archived" Collection, my donut seems fine without materials, particles and shading. These links are maybe causing the issue when I was following the tutorials: [Particles on Donut](https://youtu.be/jNmnPXY9UQA?t=481) [Random Materials on Particles](https://youtu.be/aZ5ungDgFNc?t=306) [Procedural Displacement](https://youtu.be/Rh5gAQLtOls?t=299) I maybe can conclude the possibility of the bug may occur when: 1. Hide the Collection, 2. Save the file 3. Exit 4. Open Blender file again. 5. Try create new object 6. move to new collection. 7. Working on other object first. 8. Then hide that new object. 9. After that, try to enable Donut again after finishes all the tutorials above.

Bastien Montagne commented

2020-08-18 09:56:15 +02:00

Added subscriber: @mont29

Bastien Montagne commented

2020-08-18 09:56:15 +02:00

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

Bastien Montagne closed this issue

2020-08-18 09:56:15 +02:00

Bastien Montagne self-assigned this 2020-08-18 09:56:15 +02:00

Bastien Montagne commented

2020-08-18 09:56:15 +02:00

I am sorry, but we need a clear, well documented way to reproduce the issue, 'maybes' and tens of minutes of tutorials are not acceptable here.

Am going to close that report for now, please submit a new one with expected simple steps and .blend file to reproduce them, if you can reproduce the issue yourself.

I am sorry, but we need a clear, well documented way to reproduce the issue, 'maybes' and tens of minutes of tutorials are not acceptable here. Am going to close that report for now, please submit a new one with expected simple steps and .blend file to reproduce them, if you can reproduce the issue yourself.

Robert Guetzkow commented

2020-08-18 10:25:19 +02:00

@mont29 While this may be the general guideline for the tracker, don't you think it would be better to keep this one open until we identify the cause? We had multiple people report this issue and it is one of the most watched Blender tutorials.

Chad Darby commented

2020-09-02 03:07:16 +02:00

Added subscriber: @chadnoidea

Chad Darby commented

2020-09-02 03:07:16 +02:00

{F8831408}I am also having this exact issue. I am not able to determine which step of the tutorial would cause the error. Everything was working fine BEFORE disabling the "Donut" collection to start the lessons for Part 2. No part of the mesh in the "Donut" collection is altered in any way; simply disabled.

Project folder below:

https://www.dropbox.com/sh/akjzgekflhqey0z/AAAXrpMtK7pBEEpf7vH4AelSa?dl=0

{[F8831408](https://archive.blender.org/developer/F8831408/Blender_-_Donut.zip)}I am also having this exact issue. I am not able to determine which step of the tutorial would cause the error. Everything was working fine BEFORE disabling the "Donut" collection to start the lessons for Part 2. No part of the mesh in the "Donut" collection is altered in any way; simply disabled. Project folder below: https://www.dropbox.com/sh/akjzgekflhqey0z/AAAXrpMtK7pBEEpf7vH4AelSa?dl=0

Chad Darby commented

2020-09-02 23:46:21 +02:00

Attempting to make this thread a bit more clear about the error in exact relation within the popular YouTube tutorials:

Levels 1 & 2 (all videos) cause no errors. It is only at the start of Level 3 (modeling a coffee mug) that students are instructed to disable the "Donut" collection (created in Levels 1 & 2) to begin work on the new object. No alterations are made to the "Donut" collection outside of checking the disable box in the outliner.

I did NOT complete the Level 3 lessons. I only attempted to re-enable the "Donut" collection to look my previous work (which I'd love to recover!) The collection in question had been working flawlessly until being temporarily disabled in the outliner.

Attempting to make this thread a bit more clear about the error in exact relation within the popular YouTube tutorials: Levels 1 & 2 (all videos) cause no errors. It is only at the start of Level 3 (modeling a coffee mug) that students are instructed to disable the "Donut" collection (created in Levels 1 & 2) to begin work on the new object. No alterations are made to the "Donut" collection outside of checking the disable box in the outliner. I did NOT complete the Level 3 lessons. I only attempted to re-enable the "Donut" collection to look my previous work (which I'd love to recover!) The collection in question had been working flawlessly until being temporarily disabled in the outliner.

Philipp Oeser commented

2020-10-14 18:39:58 +02:00

Added subscribers: @Doormandean, @ankitm

Philipp Oeser commented

2020-10-14 18:41:30 +02:00

Added subscribers: @MrJamela, @vins

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Blender crashes when enabling "Donut" Collection #79665