Undo is causing consistent crashing #100094
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Reference: blender/blender#100094
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Delete Branch "%!s(<nil>)"
Deleting a branch is permanent. Although the deleted branch may continue to exist for a short time before it actually gets removed, it CANNOT be undone in most cases. Continue?
System Information
Operating system: Windows-10-10.0.19044-SP0 64 Bits
Graphics card: NVIDIA GeForce GTX 1060 6GB/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 516.93
Blender Version
Broken: version: 3.2.0, branch: master, commit date: 2022-06-08 10:22, hash:
e05e1e3691
Tested in Blender 3.1 and 3.2,
Ive had this problem before with other versions of blender too, but im working in a file thats doing it more consistently. I tried deleting as much data (materials, nodes, etc.) but it will still crash after the 1st or 2nd undo i attempt. I also tried appending the contents to a new file, and a new file with factory defaults, and it will still crash when undoing.
I cant upload the original file with all the work in it, but ive attached the one where i tried deleting everything in it. Im not sure if its one of my add ons but my blend projects are usually fine up until this point where its more of a corruption maybe?
I dont have anything crazy in the original 65MB file. A few textures, a few materials, procedural shaders, and a fbx from mixamo.
Sometimes the file will immediately crash when opening the file, but will open of opened from within blender.
Thanks for the help.
Edit: I just had someone else try the file and they couldnt reproduce the error. So im not sure anymore. My new blend files (with and without factory defaults) dont have this bug. Only with the problem file.
https://blend-exchange.com/b/xzD84pGO/
blender_debug_output.txt
blender_system_info.txt
SampleTest_3_undobreak.crash.txt
Added subscriber: @spettsart-2
Added subscriber: @PratikPB2123
Changed status from 'Needs Triage' to: 'Needs User Info'
Hi, thanks for the report. Does the crash happen after performing particular sequence of steps and then Undo?
Can you reproduce the crash when running blender from
blender_factory_startup.cmd
?Please also upload crash logs:
@PratikPB2123 After the factory startup I can undo immediately before doing anything. After moving or modeling just a few times, the next 1 or 2 undos will cause a crash. I've uploaded the crash dumps. thanks.
Thanks for the info. Steps for crash reproduction are still not clear. Could you upload screen recording to show steps?
Also check if crash is avoidable when running blender with single thread:
blender -t 1
: https://docs.blender.org/manual/en/latest/advanced/command_line/arguments.html@PratikPB2123 Here's a vid of me duplicating the cube a few times and then crashing on the second undo attempt. (this is the same file I appended everything from the original file then deleted to save on upload space.) sample_crashvid.mp4
I was having trouble starting from cmd. After cd to the install directory (I'm using blender launcher so its not in vanilla folder), it will give me this error when trying to launch the exe from cmd:
Am I doing it wrong?
And should I leave this in the comment here or upload the video to the main post as well?
Thanks for the video. Still can not get the crash. Could you check again in latest 3.3 build?: https://builder.blender.org/download/daily/
blender is not set in environment variable. Workaround is: switch to the directory in cmd where blender executable is located
do:
Something in 3.3 seems to fix it! However I wonder what would be causing this since its not a file issue anyone else can see. If it were just the previous build I'd move on, but since I've experienced this in multiple builds in the past, and it seems to be only me, what could it be?
Maybe this is a clue, I tried turning on 'Undo Legacy' in the experimental prefs, and that seemed to consistently give me a few extra undos before still crashing again.
Changed status from 'Needs User Info' to: 'Archived'
I still can not reproduce even when Undo legacy is turned on. I think it's fair to close this ticket if you're not able to repro crash in 3.3
@PratikPB2123 yea, I guess so. thanks for the help!