Crash When Trying to UV Unwrap #84972

New Issue

Nathan wood · 2021-01-22T19:56:32+01:00

Nathan wood commented

2021-01-22 19:56:32 +01:00

System Information
Operating system: Windows 10
Graphics card: Intel(R) HD Graphics 5500

Blender Version
Broken: newest version
Worked: newest version

When attempting to UV unwrap my object, blender just quits. The object is multiple parts joined together with a mirror modifier and only about 1k tris.

Edit mode then select all faces, U and smart UV project (setting dont affect it crashing) and then Blender quits without any information. This has also happened to me with another project and I ended up having to export multiple pieces and texture them separately. RatHead.blend

**System Information** Operating system: Windows 10 Graphics card: Intel(R) HD Graphics 5500 **Blender Version** Broken: newest version Worked: newest version When attempting to UV unwrap my object, blender just quits. The object is multiple parts joined together with a mirror modifier and only about 1k tris. Edit mode then select all faces, U and smart UV project (setting dont affect it crashing) and then Blender quits without any information. This has also happened to me with another project and I ended up having to export multiple pieces and texture them separately. [RatHead.blend](https://archive.blender.org/developer/F9592708/RatHead.blend)

Nathan wood commented

2021-01-22 19:56:32 +01:00

Added subscriber: @Nathan-Wood

blender-admin commented

2021-01-22 19:56:32 +01:00

#85060 was marked as duplicate of this issue

Stanislav Blinov commented

2021-01-23 10:47:19 +01:00

Added subscriber: @Stan_Pancakes

Stanislav Blinov commented

2021-01-23 10:47:19 +01:00

Please specify the concrete version where a problem occurs instead of "newest version". At this time, this issue is already fixed in "newest versions" (2.91.2, 2.92 Beta and master).

The source of the problem is the single loose edge in your mesh, which, before the fix, causes a crash for several UV-related operations. You can select it in edge mode using Select -> All By Trait -> Loose Geometry, and Delete Edges. Doing that will prevent Smart UV Project from crashing.

Please specify the concrete version where a problem occurs instead of "newest version". At this time, this issue is already fixed in "newest versions" (2.91.2, 2.92 Beta and master). The source of the problem is the single loose edge in your mesh, which, before the fix, causes a crash for several UV-related operations. You can select it in edge mode using Select -> All By Trait -> Loose Geometry, and Delete Edges. Doing that will prevent Smart UV Project from crashing.

Pratik Borhade commented

2021-01-23 11:21:06 +01:00

Added subscriber: @PratikPB2123

Pratik Borhade commented

2021-01-23 11:21:06 +01:00

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

Pratik Borhade commented

2021-01-23 11:21:06 +01:00

I can't reproduce this issue on 2.92.0 alpha , Hash : d2239b685c

Blender_ [C__Users_Pratik_Downloads_RatHead.blend] 2021-01-23 15-39-09.mp4

I can't reproduce this issue on 2.92.0 alpha , Hash : d2239b685c56 [Blender_ [C__Users_Pratik_Downloads_RatHead.blend] 2021-01-23 15-39-09.mp4](https://archive.blender.org/developer/F9593636/Blender___C__Users_Pratik_Downloads_RatHead.blend__2021-01-23_15-39-09.mp4)

Roger Machin commented

2021-01-23 14:14:05 +01:00

Added subscriber: @dorad

Roger Machin commented

2021-01-23 14:14:05 +01:00

Same as #83347 ?

https://developer.blender.org/T83347

Same as #83347 ? https://developer.blender.org/T83347

Campbell Barton commented

2021-01-26 00:56:29 +01:00

Added subscribers: @kursadk, @rboxman

Nathan wood commented

2021-01-26 01:49:21 +01:00

Your computer is probably much better than mine, which allowed blender to unwrap without just crashing. I figured out the problem though. There was a loose edge like radcapricorn stated and I also found extra faces inside the mesh in face orientation mode. I simply deleted both and I was able to texture paint my Mesh

Michael Fahel commented

2021-02-04 01:00:19 +01:00

Added subscriber: @mariomguy

Michael Fahel commented

2021-02-04 01:00:19 +01:00

This occurs EVERY SINGLE TIME I attempt UV unwrap on any mesh in 2.91.2, the latest "stable" release. Exporting as an FBX, reimporting did not fix it. But importing back to 2.90 worked just fine. I have a Ryzen 7 2700x, RTX 2060 Super, 32 GB of RAM, and Windows 10 Pro... computer is definitely not the issue.

It should be said when I installed 2.91 using the Windows 10 installer, there were errors preventing the program from opening related to missing .dll files: msvcp140, vcruntime140, concrt140, and a couple others. I manually copied these files from the blender.crt folder in 2.90. Many articles stated I needed the C++ redistributables, but I already had them, for Visual Studio 2015, 2017, and 2019. Redownloaded a ton of times, but the program didn't open without the copy.

This unwrap issue is the first error I got after getting 2.91 to open, but I think it's safe to say we need a hotfix now. I can't use 2.91 at all if the main process for generating UVs are broken. Can't finish any model without it.

This occurs EVERY SINGLE TIME I attempt UV unwrap on any mesh in 2.91.2, the latest "stable" release. Exporting as an FBX, reimporting did not fix it. But importing back to 2.90 worked just fine. I have a Ryzen 7 2700x, RTX 2060 Super, 32 GB of RAM, and Windows 10 Pro... computer is definitely not the issue. It should be said when I installed 2.91 using the Windows 10 installer, there were errors preventing the program from opening related to missing .dll files: msvcp140, vcruntime140, concrt140, and a couple others. I manually copied these files from the blender.crt folder in 2.90. Many articles stated I needed the C++ redistributables, but I already had them, for Visual Studio 2015, 2017, and 2019. Redownloaded a ton of times, but the program didn't open without the copy. This unwrap issue is the first error I got after getting 2.91 to open, but I think it's safe to say we need a hotfix now. I can't use 2.91 at all if the main process for generating UVs are broken. Can't finish any model without it.

Evan Wilson commented

2021-02-04 03:37:54 +01:00

Added subscriber: @EAW

Evan Wilson commented

2021-02-04 03:37:54 +01:00

In #84972#1106663, @mariomguy wrote:
It should be said when I installed 2.91 using the Windows 10 installer, there were errors preventing the program from opening related to missing .dll files: msvcp140, vcruntime140, concr others. I manually copied these files from the blender.crt folder in 2.90.

There is an issue with your installation. Please try uninstalling, redownloading, and reinstalling 2.91.2 again. (You can also download the portable version to bypass any installation issues. It is available under “other versions” on the blender.org/download webpage). If you encounter installation errors this time, please open a new separate report.

> In #84972#1106663, @mariomguy wrote: > It should be said when I installed 2.91 using the Windows 10 installer, there were errors preventing the program from opening related to missing .dll files: msvcp140, vcruntime140, concr others. I manually copied these files from the blender.crt folder in 2.90. There is an issue with your installation. Please try uninstalling, redownloading, and reinstalling 2.91.2 again. (You can also download the portable version to bypass any installation issues. It is available under “other versions” on the blender.org/download webpage). If you encounter installation errors this time, please open a new separate report.

Evan Wilson commented

2021-02-04 03:43:17 +01:00

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

Evan Wilson closed this issue

2021-02-04 03:43:17 +01:00

Evan Wilson self-assigned this 2021-02-04 03:43:17 +01:00

Evan Wilson commented

2021-02-04 03:43:17 +01:00

As this issue has been fixed in 2.91.2, I’ll be closing this report since OP didn’t respond with what version they are using since being asked over seven days ago. As per the tracker policy we assume the issue is gone and can be closed.

Thanks again for the report. If the problem persists please open a new report with the required information.

As this issue has been fixed in 2.91.2, I’ll be closing this report since OP didn’t respond with what version they are using since being asked over seven days ago. As per the tracker policy we assume the issue is gone and can be closed. Thanks again for the report. If the problem persists please open a new report with the required information.

Michael Fahel commented

2021-02-08 17:00:07 +01:00

I believe this issue has been fixed. It still shows as 2.91.2 when I download and installed the program using Windows' installer, but while uninstalling/reinstalling didn't work before, for whatever reason it works fine now.

Sign in to join this conversation.

No Label

Download

What's New

Blender Studio

Manual

Developers Blog

Documentation

Benchmark

Blender Conference

Development Fund

One-time Donations

Crash When Trying to UV Unwrap #84972