Render Animation Freezes / Hangs after a few hundred frames #102675

New Issue

Derrick Murray · 2022-11-22T01:25:46+01:00

Derrick Murray commented

2022-11-22 01:25:46 +01:00

System Information
Operating system: Windows-10-10.0.22621-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 3080 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 516.94

Blender Version
Broken: version: 3.3.1, branch: master, commit date: 2022-10-04 18:35, hash: b292cfe5a9
Worked: 3.2

Short description of error
Render Animation Freezes / Hangs after a few hundred frames

Exact steps for others to reproduce the error

When rendering an animation, Blender freezes on a frame at 100% status, but does not continue to the next frame. I've waited up to 30 minutes in case it was a transient error, but it never restarts. The session is dead, and I have to end it via Task Manager and restart Blender. This has only started with the 3.3.1 LTS and occurs on all of my current blend files (I've tried half a dozen).

There is no error message, and the console window (which only started displaying since I installed 3.3.1) shows activity which is not current (i.e. "saving xxx.png where 'xxx' is not the current frame being rendered).

When it has crashed, Task Manager shows Blender.exe with the usual high memory usage but 0% CPU activity. (Note: System memory is only about 50% utilised overall, out of 48GB max)

VRAM is at about 6GB used on a 12GB card for the blend files I am working on.

The hang occurs on both single camera renders, and Multiview.
Upon restart Blender continues with no issues, but will again stop after a few hundred frames. There is plenty of HD space on the drive (>1TB free).

**System Information** Operating system: Windows-10-10.0.22621-SP0 64 Bits Graphics card: NVIDIA GeForce RTX 3080 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 516.94 **Blender Version** Broken: version: 3.3.1, branch: master, commit date: 2022-10-04 18:35, hash: `b292cfe5a9` Worked: 3.2 **Short description of error** Render Animation Freezes / Hangs after a few hundred frames **Exact steps for others to reproduce the error** When rendering an animation, Blender freezes on a frame at 100% status, but does not continue to the next frame. I've waited up to 30 minutes in case it was a transient error, but it never restarts. The session is dead, and I have to end it via Task Manager and restart Blender. This has only started with the 3.3.1 LTS and occurs on all of my current blend files (I've tried half a dozen). ![Screenshot 2022-11-22 at 00.10.51.png](https://archive.blender.org/developer/F13957874/Screenshot_2022-11-22_at_00.10.51.png) There is no error message, and the console window (which only started displaying since I installed 3.3.1) shows activity which is not current (i.e. "saving xxx.png where 'xxx' is not the current frame being rendered). When it has crashed, Task Manager shows Blender.exe with the usual high memory usage but 0% CPU activity. (Note: System memory is only about 50% utilised overall, out of 48GB max) VRAM is at about 6GB used on a 12GB card for the blend files I am working on. The hang occurs on both single camera renders, and Multiview. Upon restart Blender continues with no issues, but will again stop after a few hundred frames. There is plenty of HD space on the drive (>1TB free).

Derrick Murray commented

2022-11-22 01:25:46 +01:00

Added subscriber: @djm.nx01

Omar Emara commented

2022-11-22 07:50:32 +01:00

Added subscriber: @OmarEmaraDev

Omar Emara commented

2022-11-22 07:50:32 +01:00

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

Omar Emara commented

2022-11-22 07:50:32 +01:00

When it has crashed.

I am guessing you mean freezed here? Or did it actually crash?

Please open Blender's installation directory and double click on the blender_debug_gpu.cmd. This will start Blender in debug mode and create log files. Try to reproduce the error again. Once it freezes and you close Blender manually the Windows Explorer should open and show you up to two files, a debug log and the system information. Add them to your bug report by clicking on the upload button as shown in the screenshot below or via drag and drop. Please also upload the crash log located in C:\Users\[your username]\AppData\Local\Temp\[project name].crash.txt (or simply type %TEMP% into the path bar of the Windows Explorer).

> When it has crashed. I am guessing you mean freezed here? Or did it actually crash? Please open Blender's installation directory and double click on the `blender_debug_gpu.cmd`. This will start Blender in debug mode and create log files. Try to reproduce the error again. Once it freezes and you close Blender manually the Windows Explorer should open and show you up to two files, a debug log and the system information. Add them to your bug report by clicking on the upload button as shown in the screenshot below or via drag and drop. Please also upload the crash log located in `C:\Users\[your username]\AppData\Local\Temp\[project name].crash.txt` (or simply type `%TEMP%` into the path bar of the Windows Explorer).![2019_12_04_upload_icon_developer_blender_org.png](https://archive.blender.org/developer/F8190038/2019_12_04_upload_icon_developer_blender_org.png)

Jeroen Bakker commented

2022-11-22 17:17:47 +01:00

Added subscriber: @Jeroen-Bakker

Jeroen Bakker commented

2022-11-22 17:17:47 +01:00

I remember a report where GPU subdivision memory wasn't cleared during Eevee rendering. This has been fixed recently 88c956c13b. Just added the fix to be backported to 3.3 as well.

I remember a report where GPU subdivision memory wasn't cleared during Eevee rendering. This has been fixed recently 88c956c13b. Just added the fix to be backported to 3.3 as well.

Derrick Murray commented

2022-11-24 17:11:04 +01:00

In #102675#1449535, @OmarEmaraDev wrote:

When it has crashed.

I am guessing you mean freezed here? Or did it actually crash?

Please open Blender's installation directory and double click on the blender_debug_gpu.cmd. This will start Blender in debug mode and create log files. Try to reproduce the error again. Once it freezes and you close Blender manually the Windows Explorer should open and show you up to two files, a debug log and the system information. Add them to your bug report by clicking on the upload button as shown in the screenshot below or via drag and drop. Please also upload the crash log located in C:\Users\[your username]\AppData\Local\Temp\[project name].crash.txt (or simply type %TEMP% into the path bar of the Windows Explorer).

Thanks for the reply and detail on how to run in debug mode - very helpful! However - frustration ensues. After this occurring 2 or 3 time every day whilst working on the project, it hasn't occurred once in the three days since reporting this issue, whilst running in debug mode.
So, I tried running it as per normal, to see if the debug mode was somehow affecting it, and it hasn't occurred at all.

I'm going to continue working, and if it starts to occur again, I'll switch debug mode back on and send the info in.

> In #102675#1449535, @OmarEmaraDev wrote: >> When it has crashed. > I am guessing you mean freezed here? Or did it actually crash? > > Please open Blender's installation directory and double click on the `blender_debug_gpu.cmd`. This will start Blender in debug mode and create log files. Try to reproduce the error again. Once it freezes and you close Blender manually the Windows Explorer should open and show you up to two files, a debug log and the system information. Add them to your bug report by clicking on the upload button as shown in the screenshot below or via drag and drop. Please also upload the crash log located in `C:\Users\[your username]\AppData\Local\Temp\[project name].crash.txt` (or simply type `%TEMP%` into the path bar of the Windows Explorer).![2019_12_04_upload_icon_developer_blender_org.png](https://archive.blender.org/developer/F8190038/2019_12_04_upload_icon_developer_blender_org.png) Thanks for the reply and detail on how to run in debug mode - very helpful! However - frustration ensues. After this occurring 2 or 3 time every day whilst working on the project, it hasn't occurred once in the three days since reporting this issue, whilst running in debug mode. So, I tried running it as per normal, to see if the debug mode was somehow affecting it, and it hasn't occurred at all. I'm going to continue working, and if it starts to occur again, I'll switch debug mode back on and send the info in.

Derrick Murray commented

2022-11-26 15:12:19 +01:00

Finally! It froze again today. Logs attached. I've also archived the entire %TEMP% contents for future reference.blender_debug_output.txt

blender_system_info.txt

Finally! It froze again today. Logs attached. I've also archived the entire %TEMP% contents for future reference.[blender_debug_output.txt](https://archive.blender.org/developer/F13971416/blender_debug_output.txt) [blender_system_info.txt](https://archive.blender.org/developer/F13971415/blender_system_info.txt)

Derrick Murray commented

2022-11-27 09:31:31 +01:00

It occurred again. blender_debug_output.txt

blender_system_info.txt

It occurred again. [blender_debug_output.txt](https://archive.blender.org/developer/F13972933/blender_debug_output.txt) ![Screenshot 2022-11-27 at 08.25.45.jpg](https://archive.blender.org/developer/F13972932/Screenshot_2022-11-27_at_08.25.45.jpg) [blender_system_info.txt](https://archive.blender.org/developer/F13972931/blender_system_info.txt)

Omar Emara commented

2022-11-27 12:15:41 +01:00

Does disabling GPU Subdivision in Preferences > Viewport > Subdivision > GPU Subdivision fixes the issue?

Derrick Murray commented

2022-11-28 00:53:17 +01:00

In #102675#1451979, @OmarEmaraDev wrote:
Does disabling GPU Subdivision in Preferences > Viewport > Subdivision > GPU Subdivision fixes the issue?

Hi Omar,
I didn't know about this option, so I have never had it enabled. I just double-checked and it is not set.

Thanks
DJM

> In #102675#1451979, @OmarEmaraDev wrote: > Does disabling GPU Subdivision in Preferences > Viewport > Subdivision > GPU Subdivision fixes the issue? Hi Omar, I didn't know about this option, so I have never had it enabled. I just double-checked and it is not set. Thanks DJM

Derrick Murray commented

2022-11-28 00:54:27 +01:00

Changed status from 'Needs User Info' to: 'Needs Developer To Reproduce'

Omar Emara commented

2022-11-28 07:41:28 +01:00

Changed status from 'Needs Developer To Reproduce' to: 'Needs Triage'

Derrick Murray commented

2022-11-28 14:10:52 +01:00

I went back to using v3.2, and it also happened on that version. This is strange because I don't recall it occurring before I upgraded to v3.3. My PC is always kept up to date with Windows versions, so could there be something that't changed on the windows front that is interacting with it? Anyway, I'm running all my v3.2 builds on debug mode (luckily I have a large set to do after a design change), and I'll send you the logs if/when it fails again.
Would it be useful for me to test under v3.1 as well?

I went back to using v3.2, and it also happened on that version. This is strange because I don't recall it occurring before I upgraded to v3.3. My PC is always kept up to date with Windows versions, so could there be something that't changed on the windows front that is interacting with it? Anyway, I'm running all my v3.2 builds on debug mode (luckily I have a large set to do after a design change), and I'll send you the logs if/when it fails again. Would it be useful for me to test under v3.1 as well?

Pratik Borhade commented

2023-03-21 10:49:56 +01:00

Hi, which render engine is resulting the freeze? Cycles?
Can you test again with factory settings?: File > Defaults > Load Factory Settings
Also check whether freeze still happens in 3.5-beta build: https://builder.blender.org/download/daily/

Hi, which render engine is resulting the freeze? Cycles? Can you test again with factory settings?: `File > Defaults > Load Factory Settings` Also check whether freeze still happens in 3.5-beta build: https://builder.blender.org/download/daily/

Pratik Borhade added

Status

Needs Information from User

and removed

Status

Needs Triage

labels 2023-03-21 10:50:04 +01:00

Pratik Borhade commented

2023-04-28 08:21:47 +02:00

Hi, any updates?

Pratik Borhade commented

2023-06-09 05:49:20 +02:00

No activity for more than a week. 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 (or comment here to reopen this) with the required information.

No activity for more than a week. 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 (or comment here to reopen this) with the required information.

Pratik Borhade closed this issue

2023-06-09 05:49:22 +02:00

Blender Bot added

Status

Archived

and removed

Status

Needs Information from User

labels 2023-06-09 05:49:50 +02:00

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