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Maniphest T79106

Blender crash on loop cut
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Description

System Information
Operating system: Windows-7-6.1.7601-SP1 64 Bits
Graphics card: GeForce GTX 1050/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 446.14

Blender Version
Broken: version: 2.90.0 Alpha, branch: master, commit date: 2020-07-19 21:23, hash: rB78e40ad21f5b
Worked: (newest version of Blender that worked as expected)

Short description of error
The Blender crashes when you work with Loop Cut in editing mode.

Exact steps for others to reproduce the error
Opened The Blender. Switched to editing mode. Clicked on Loop Cut. Made a few Loop Cuts and the Blender crashed (This is a very simple example just for testing).

Loop_cut_crash.blend739 KBDownload

blender.crash.txt22 KBDownload

Related Objects

Event Timeline

Roman (RomanSI) created this task.Jul 20 2020, 10:17 AM
Roman (RomanSI) added a project: Modeling.
Marcin Twarowski (Tvaroog) added a subscriber: Marcin Twarowski (Tvaroog).Jul 20 2020, 1:51 PM

I can confirm a crash too.
System Information
Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: GeForce GTX 1080/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 451.67

Blender Version
Broken: version: 2.90.0 Alpha, branch: master, commit date: 2020-07-19 21:23, hash: rB78e40ad21f5b
Worked: 2.90.0 Alpha, branch: master, commit date: 2020-07-12 09:05, hash: rBf319eec88186

Marcin Twarowski (Tvaroog) mentioned this in T79115: Crash on loop cut.Jul 20 2020, 4:45 PM
Robert Guetzkow (rjg) changed the task status from Needs Triage to Confirmed.Jul 20 2020, 6:45 PM
Robert Guetzkow (rjg) triaged this task as High priority.
Robert Guetzkow (rjg) merged a task: T79115: Crash on loop cut.
Robert Guetzkow (rjg) added a subscriber: Sekhar Ravinutala (sekhar).
Robert Guetzkow (rjg) renamed this task from Blender_crash_when_Loop_Cut to Blender crash on loop cut.Jul 20 2020, 6:47 PM
Robert Guetzkow (rjg) added a project: EEVEE & Viewport.
Robert Guetzkow (rjg) added subscribers: Clément Foucault (fclem), Robert Guetzkow (rjg).Jul 20 2020, 7:19 PM

It seems that 56b8adb9e241 is ok. This is likely for you @Clément Foucault (fclem).

Robert Guetzkow (rjg) mentioned this in T79138: Blender Crash when going to edit mode with display type "bounds" or "wire".Jul 21 2020, 2:00 PM
Robert Guetzkow (rjg) closed this task as Resolved.Jul 21 2020, 2:19 PM
Robert Guetzkow (rjg) claimed this task.

This issue should be fixed by rB8c916a3aecc49351dbbb0d22c8bc0e5712b9e9ac. I can't reproduce it with this patch anymore and the stack trace suggests that this was the same underlying issue as T79066 in extract_tris_finish.