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Maniphest T84556

Blend file crashed and won't open
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Description

System Information
Operating system: MacOS 10.15.6
Graphics card: AMD Radeon Pro 5500M 8 GB + Intel UHD Graphics 630 1536 MB

Blender Version
Broken: 2.83, 2.90, 2.91
Worked: ---

My file "Verenigingstraat" crashed suddenly

Verenigingstraat.blend47 MBDownload
, and now it won't open anymore. All my other files still open normally.

Exact steps for others to reproduce the error
I was working in Edit mode on something architectural and I was only using the Extrude command, combining with shift and control. The usual stuff.
The file crashed so suddenly that I don't know what triggered it.

I've tried opening the same file in 2.83, 2.90 and 2.91. It won't open anymore.

This is the log file I got when it quitted:

P1879

Related Objects

Event Timeline

Jostijn (Jostijn) created this task.Jan 9 2021, 8:08 PM
Falk David (filedescriptor) updated the task description. (Show Details)Jan 11 2021, 10:39 AM
Falk David (filedescriptor) changed the task status from Needs Triage to Confirmed.Jan 11 2021, 10:43 AM
Falk David (filedescriptor) added a subscriber: Falk David (filedescriptor).

I can confirm that the file will crash. Tested with Blender 2.92.0, Commit date: 2021-01-11 06:58, Hash 64929398fbab.

Philipp Oeser (lichtwerk) added a subscriber: Philipp Oeser (lichtwerk).Jan 11 2021, 11:49 AM

This is similar to e.g. T79793: Blender crashing on Mac OS Catalina when changing scenes + crashing upon startup when opening certain .blend files

So yes, we have a couple of corrupted meshes.

To recover those "bad" files, what I usually do is:

  • from the bad file, append the scene(s) into a fresh empty file [this way you dont have the bad scene active and dont get crashes]
  • then repair/validate all meshes using the following in the Python console:
[(me.name, me.validate(verbose=True)) for me in bpy.data.meshes]

This way, you can often get most of the stuff back:

Verenigingstraat_repair.blend34 MBDownload

But regarding the corruption and bugreports: we have the following policy:

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.

So afraid we have to close this, but feel free to comment again if this happens again and you can provide reproduction steps

Philipp Oeser (lichtwerk) closed this task as a duplicate of T79793: Blender crashing on Mac OS Catalina when changing scenes + crashing upon startup when opening certain .blend files.Jan 11 2021, 11:49 AM