Blender crashes while undoing a loop cut (mirror modifier involved) #68728

New Issue

Ayoze · 2019-08-16T13:04:52+02:00

Ayoze commented

2019-08-16 13:04:52 +02:00

System Information
Operating system: Windows-10-10.0.17134 64 Bits
Graphics card: AMD Radeon HD 7500M/7600M Series ATI Technologies Inc. 4.5.13399 Core Profile Context 15.201.1151.1008

Blender Version
Broken: version: 2.80 (sub 75), branch: master, commit date: 2019-07-29 14:47, hash: f6cb5f5449
Worked: (optional)

Short description of error
Blender crashes trying to undo a loop cut. Though mirror modifier was used to make the attached mesh, it still crashes after deactivating it.
I can't reproduce the bug with the default cube mesh without transformations, but I have reproduced it after activating the mirror modifier, extruding a single face, using Loop Cut and undoing it.

Exact steps for others to reproduce the error
Make and undo a loop cut in any part of the mesh (not only the mirrored one).
The bug occurs after 1-5 uses of undo on the attached mesh, and after 10-20 uses on a cube with an extruded face.

bug_loop_cut.blend

**System Information** Operating system: Windows-10-10.0.17134 64 Bits Graphics card: AMD Radeon HD 7500M/7600M Series ATI Technologies Inc. 4.5.13399 Core Profile Context 15.201.1151.1008 **Blender Version** Broken: version: 2.80 (sub 75), branch: master, commit date: 2019-07-29 14:47, hash: `f6cb5f5449` Worked: (optional) **Short description of error** Blender crashes trying to undo a loop cut. Though mirror modifier was used to make the attached mesh, it still crashes after deactivating it. I can't reproduce the bug with the default cube mesh without transformations, but I have reproduced it after activating the mirror modifier, extruding a single face, using Loop Cut and undoing it. **Exact steps for others to reproduce the error** Make and undo a loop cut in any part of the mesh (not only the mirrored one). The bug occurs after 1-5 uses of undo on the attached mesh, and after 10-20 uses on a cube with an extruded face. [bug_loop_cut.blend](https://archive.blender.org/developer/F7667170/bug_loop_cut.blend)

Ayoze commented

2019-08-16 13:04:52 +02:00

Added subscriber: @Ayoze

Jacques Lucke commented

2019-08-22 15:08:44 +02:00

Added subscriber: @JacquesLucke

Jacques Lucke commented

2019-08-22 15:08:44 +02:00

I cannot reproduce it. Can you make a short screen recording showing the bug, please?

Ayoze commented

2019-08-22 18:19:06 +02:00

Bug_loop_cut.mp4
Well... that was short, it closed the first time I pressed Ctrl+Z. It was the same file (and version) I uploaded.
I'm still working with that model and I have the same bug on time to time.

[Bug_loop_cut.mp4](https://archive.blender.org/developer/F7687613/Bug_loop_cut.mp4) Well... that was short, it closed the first time I pressed Ctrl+Z. It was the same file (and version) I uploaded. I'm still working with that model and I have the same bug on time to time.

Philipp Oeser commented

2019-08-22 18:27:33 +02:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2019-08-22 18:27:33 +02:00

I think this is already fixed by 3566b81c8b.
@Ayoze: could you check if this still happens for in a build from https://builder.blender.org/download/?

I think this is already fixed by 3566b81c8b. @Ayoze: could you check if this still happens for in a build from https://builder.blender.org/download/?

Bastien Montagne commented

2019-09-02 19:05:14 +02:00

Added subscriber: @mont29