Crash on Undo #62175

New Issue

Benjamin · 2019-03-04T10:28:18+01:00

Benjamin commented

2019-03-04 10:28:18 +01:00

Note: i am aware this was reported (a couple times) before but they have been reported as fixed in newest version and for the most part it is but i suspect my file is still triggering the same issue and given its complexity may have caught some other case where the issue is triggered that wasn't accounted for prior.

System Information
Operating system:Win 10
Graphics card: GTX 1070

Blender Version
Date: 2019-03-04 00:30
Hash: 798d2cadc3
Branch: blender2.7
(its 2.8 but ^thats^ what it says on the splash... O.o)

Crash when undoing anything is a specific Blend File.
Was fine for some time on "2.80.0-git.25772c9e1d2d" but started becoming unstable seemingly out of nowhere. no external files were added between normal undo functionality and when it started crashing. upgrading blender versions did NOT resolve the issue and googling it did little other than allow me to get a post crash CMD print out (below). the crash is consistent. im sorry im not more help. if someone could provide me detailed steps to hopefully isolate and recreate the issue i will be happy to comply furthur

Steps to reproduce:Unknown
File can be emailed privately if need be as exact cause is unknown and file is rather large (13.5 MB). else i am able to attempt
specific debugging processes.

P.S. i am sorry i am unable to provide more specific information at this time. as this is my first bug report on anything other than a minecraft mod i have little experience
gathering it. if anything is missing or i have done something wrong please inform me and if possible i will rectify it. My intent here is to help solve this issue and, if possible, recover my blend file

Note: i am aware this was reported (a couple times) before but they have been reported as fixed in newest version and for the most part it is but i suspect my file is still triggering the same issue and given its complexity may have caught some other case where the issue is triggered that wasn't accounted for prior. **System Information** Operating system:Win 10 Graphics card: GTX 1070 **Blender Version** Date: 2019-03-04 00:30 Hash: 798d2cadc307 Branch: blender2.7 (its 2.8 but ^thats^ what it says on the splash... O.o) Crash when undoing anything is a specific Blend File. Was fine for some time on "2.80.0-git.25772c9e1d2d" but started becoming unstable seemingly out of nowhere. no external files were added between normal undo functionality and when it started crashing. upgrading blender versions did NOT resolve the issue and googling it did little other than allow me to get a post crash CMD print out (below). the crash is consistent. im sorry im not more help. if someone could provide me detailed steps to hopefully isolate and recreate the issue i will be happy to comply furthur ![image.png](https://archive.blender.org/developer/F6758562/image.png) Steps to reproduce:Unknown File can be emailed privately if need be as exact cause is unknown and file is rather large (13.5 MB). else i am able to attempt specific debugging processes. P.S. i am sorry i am unable to provide more specific information at this time. as this is my first bug report on anything other than a minecraft mod i have little experience gathering it. if anything is missing or i have done something wrong please inform me and if possible i will rectify it. My intent here is to help solve this issue and, if possible, recover my blend file

Benjamin commented

2019-03-04 10:28:19 +01:00

Added subscriber: @AlienXtream

Jacques Lucke commented

2019-03-04 11:22:11 +01:00

Added subscriber: @JacquesLucke

Jacques Lucke commented

2019-03-04 11:22:11 +01:00

Are you saying that the specific bug did not exist in rb25772c9e1d2d?

Without steps to reproduce it, solving it will be impossible.
Can you recreate the problem in a new file?

Or can you try to remove everything from your file that is not necessary to reproduce the issue?
Are you allowed to share the .blend? If yes, feel free to just upload it here (13.5 MB is fine).

Are you saying that the specific bug did not exist in rb25772c9e1d2d? Without steps to reproduce it, solving it will be impossible. Can you recreate the problem in a new file? Or can you try to remove everything from your file that is not necessary to reproduce the issue? Are you allowed to share the .blend? If yes, feel free to just upload it here (13.5 MB is fine).

Benjamin commented

2019-03-04 12:34:42 +01:00

not 100% sure. the file crashed whilst in the aforementioned version (did not note the circumstances of crash at the time however muscle memory for ctl + z is a thing so its likely i did so autonomously to revert a change or selection). i updated to the latest build (at the time it was from the 3rd of march, not the 4th [AEDT]) assuming it to be a "quirk" of 2.8 beta. that failing to resolve the issue i returned later and tried a newer build of blender (the one in the hash on OP). That still failing i googled and narrowed down the issue to be triggered by "undo".

i can provide vague steps to narrow down what i was doing however these are not function by function steps and are just my accounts from memory; with an already relatively complex scene, i created a NEW scene within the same blend. after some fumbling around learning how the new layer system worked with scenes i managed to transfer over my reference mannequin (exported from UE4 for the record). after which i imported an SVG file of a complex shape i did not wish to model. all is going well through the conversion and remesh. after i had done with the decal object i proceeded to acquire an image of a wardrobe i liked in order to model from. this is roughly where the issues started. i cant narrow down a specific point but since after i had adjusted and positioned my ref and began modeling the object it began crashing. first time it happened i had not saved in a little while and had gotten quite far, oblivious to any problem. i dont know EXACTLY what i did but later evidence and attempts to circumvent/reproduce the problem lead me to assume i hit undo, thus leading into this whole problem.

as mentioned, the priority is to see what CAUSED the crash to fix it and if POSSIBLE to recover the file itself as to have a method of retroactively fixing the issue in other cases. i am allowed to share it, yes. its a personal project, mainly to push the limits of eevee and learn 2.8. from a recovery standpoint i can just export the raw mesh (i assume, without crashing) or append them, so my work CAN be recovered with some (a lot of) fix-up. File is uploading as a write this (packed textures bump up to 15.9 just FYI). i know this isnt a lot to go on from a technical standpoint, if there are any debugging tools/crash logs built into blender i would be happy to provide those (blender really needs some sort of built in crash handler for times like this wink wink :P )

TARDIS_Interior281.blend

hope this is enough to at least START narrowing it down. i will continue to provide any and all information i can and sorry for being a bother in advance

not 100% sure. the file crashed whilst in the aforementioned version (did not note the circumstances of crash at the time however muscle memory for ctl + z is a thing so its likely i did so autonomously to revert a change or selection). i updated to the latest build (at the time it was from the 3rd of march, not the 4th [AEDT]) assuming it to be a "quirk" of 2.8 beta. that failing to resolve the issue i returned later and tried a newer build of blender (the one in the hash on OP). That still failing i googled and narrowed down the issue to be triggered by "undo". i can provide vague steps to narrow down what i was doing however these are not function by function steps and are just my accounts from memory; with an already relatively complex scene, i created a NEW scene within the same blend. after some fumbling around learning how the new layer system worked with scenes i managed to transfer over my reference mannequin (exported from UE4 for the record). after which i imported an SVG file of a complex shape i did not wish to model. all is going well through the conversion and remesh. after i had done with the decal object i proceeded to acquire an image of a wardrobe i liked in order to model from. this is roughly where the issues started. i cant narrow down a specific point but since after i had adjusted and positioned my ref and began modeling the object it began crashing. first time it happened i had not saved in a little while and had gotten quite far, oblivious to any problem. i dont know EXACTLY what i did but later evidence and attempts to circumvent/reproduce the problem lead me to assume i hit undo, thus leading into this whole problem. as mentioned, the priority is to see what CAUSED the crash to fix it and if POSSIBLE to recover the file itself as to have a method of retroactively fixing the issue in other cases. i am allowed to share it, yes. its a personal project, mainly to push the limits of eevee and learn 2.8. from a recovery standpoint i can just export the raw mesh (i assume, without crashing) or append them, so my work CAN be recovered with some (a lot of) fix-up. File is uploading as a write this (packed textures bump up to 15.9 just FYI). i know this isnt a lot to go on from a technical standpoint, if there are any debugging tools/crash logs built into blender i would be happy to provide those (blender really needs some sort of built in crash handler for times like this *wink wink* :P ) [TARDIS_Interior281.blend](https://archive.blender.org/developer/F6759048/TARDIS_Interior281.blend) hope this is enough to at least START narrowing it down. i will continue to provide any and all information i can and sorry for being a bother in advance

Jacques Lucke commented

2019-03-04 12:41:10 +01:00

Added subscribers: @mont29, @ideasman42

Jacques Lucke commented

2019-03-04 12:41:10 +01:00

@mont29, this seems to be some IDProperty user counting issue again.

Open the above file.
Move the door (just so there is something to undo).
Undo -> assertion failure.

Also adding @ideasman42, because this is undo related.

@mont29, this seems to be some IDProperty user counting issue again. 1. Open the above file. 2. Move the door (just so there is something to undo). 3. Undo -> assertion failure. Also adding @ideasman42, because this is undo related.

Benjamin commented

2019-03-04 12:56:40 +01:00

so did i find an obscure scenario that triggers the same undo related issue that was previously thought to be fixed? like, needle in a haystack type obscure? if so that means i may have actually helped find an issue and NOT just wasted time bugging you all with a corrupt blend :D

Jacques Lucke commented

2019-03-04 13:00:23 +01:00

@AlienXtream, unfortunately there are many different ways undo can break... And they can all be unrelated..

Well, could be that the problem is caused by a corrupt .blend file, but I don't think so.

@AlienXtream, unfortunately there are many different ways undo can break... And they can all be unrelated.. Well, could be that the problem is caused by a corrupt .blend file, but I don't think so.

Benjamin commented

2019-03-04 13:04:49 +01:00

therefore, IF the blend ISNT corrupt its POSSIBLE, once the fix is pushed, that my project will be functional again?

blender-admin commented

2019-03-04 16:44:33 +01:00

This issue was referenced by cfe044b4ef

This issue was referenced by cfe044b4efefe4b52252e4943657be7d0812cafe

blender-admin commented

2019-03-04 16:44:33 +01:00

This issue was referenced by f9ffa18171

This issue was referenced by f9ffa18171c59340cbb5d6280450a16c06415384

Bastien Montagne commented

2019-03-04 16:45:53 +01:00

Changed status from 'Open' to: 'Resolved'

Bastien Montagne closed this issue

2019-03-04 16:45:53 +01:00

Benjamin commented

2019-03-04 20:11:48 +01:00

i have downloaded and tested the newest build of blender and can confirm that it works on my end as well. your (and your fellow contributors) commitment to blender is greatly appreciated by the community, thankyou :)

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Crash on Undo #62175