Blender crashes when duplicate malt node

[kozatt0]

Malt version

Release

Blender version

Blender 3.4.1

OS

Windows 11 64 bits

Hardware info

Intel i5|16GB RAM| Nvidia RTX 2060 GB

Issue description and reproduction steps

The error occurs when you duplicate or copy more than 2 malt nodes, it also occurs when you duplicate the malt node tree as long as it has more than 2 nodes.

The version of blender that I use is 3.4.1 and malt is dated 5 Jan | Latest

Attachments

example.zip malt 2023-02-13(04-18).log

[kozatt0]

https://user-images.githubusercontent.com/40680159/218408202-ea764a14-c3c4-4e17-bc03-4e0ba3d40b9f.mp4

[pragma37]

This one got introduced in 3.4.1. I need to look into the details, but for now you can revert to Blender 3.4.0.

[Jenssons]

So i don't make a Dupe post i have the same problem but im on 3.4.0 with the newest version of malt and it crashes when i try to copy the material or to many nodes at once

[kozatt0]

Yeah. i still have the same problem with 3.4.0 so basically i had to back to 3.3 lts.

[pragma37]

Could you try with 3.4.1 and the latest Malt version?

[Jenssons]

i was using the newest version of blender and malt before trying 3.4.0 it was the same issue

[pragma37]

I can't reproduce it myself. What version of Malt are you using (Release/Development)?

Could you post the Malt log and the Blender crash report?

You mention it crashes when duplicating too many nodes at once, does it mean it doesn't crash when duplicating a low number of nodes?

[kozatt0]

These are some tests I did. In the first one, with just a diffuse node, the program doesn't crash. This works if you duplicate using [ctrl+c] and [ctrl+v] or using the duplicate node option, however when using duplicate node for some reason those connecting the nodes either lose their connection or are misconnected. But when using [shift + d] the program crashes

https://user-images.githubusercontent.com/40680159/223865912-c1ebf3af-c058-4173-81e0-6a51c15f2a75.mp4

the second test which is the one where the error always occurs. is when another diffuse node is mixed with a layer node and another diffuse node. in any of these cases. either [ctrl+c]+[ctrl+v] or [shift+d] or duplicate node. the program crashes.

https://user-images.githubusercontent.com/40680159/223866681-ab745b1b-4067-41cf-abe9-f7e42f2cb390.mp4

i might suspect that the error is related to what i showed in the first test. that when the nodes are duplicated they are unlinked

Here I leave the system specifications

Malt version Feb 14 2023

Blender version Blender 3.4.0

OS Windows 11 64 bits

Hardware info Intel i5|16GB RAM| Nvidia RTX 2060 GB

Here the blend file and the log

hope it helps! maltbuild3.4.zip malt 2023-03-08(19-23).log

[kozatt0]

I should add that this error doesn't occur in blender 3.3.3 LTS

https://user-images.githubusercontent.com/40680159/223870409-387cae18-af48-4034-93c1-012dc6b5eee6.mp4

[Jenssons]

I can't reproduce it myself. What version of Malt are you using (Release/Development)?

Could you post the Malt log and the Blender crash report?

You mention it crashes when duplicating too many nodes at once, does it mean it doesn't crash when duplicating a low number of nodes?

ill work on this after i finish my live stream haha

[Jenssons]

malt 2023-03-09(06-54).log

here is my log if you need anything else please ask im even happy to test out things for you also

[pragma37]

Could you check Blender 3.5 with the latest Development version? https://github.com/bnpr/Malt/releases/tag/Development-latest

[Jenssons]

i didnt crash!!!! and i used a HUGE node tree, lets see how kozatt0 blender reacts

[pragma37]

Awesome! Thanks for the quick answer. 😃

[kozatt0]

Funciona!

Nicee.. its works!

even more so blender 3.5 had a lot of performance improvements, very excited to try it with malt now knowing it works Thank you!

pd: mucha suerte con los que estas implementando en eevee next :)

https://user-images.githubusercontent.com/40680159/228975420-88d0afd0-c018-4968-9471-f145d84eab40.mp4

[pragma37]

Great! I'm going to merge it into the Release branch as well, then.

pd: mucha suerte con los que estas implementando en eevee next :)

Gracias!