Blend File cannot open after saving. A very simple reproduction file, line width not related.

[HSDSZ]

Malt version

node-groups-latest

Blender version

blender 4.2

OS

win 11

Hardware info

intel i5-12400F RTX3060Ti

Issue description and reproduction steps

I finally found a possibility with the crash and file not open bug this, and this.

Here is how to reproduce the crash. Only one step
change the node tree from

to

then, this blend file leave you forever.

Attachments

bug.zip

[HSDSZ]

I personally will not use the combined Vec4 math in the future. I will use the individual one instead

[pragma37]

Is this something you can reproduce consistently?
I gave it a few tries, and even tried with a portable Blender installation and the BlenderMalt build from Github, but I still can't repro it. :(

[HSDSZ]

Is this something you can reproduce consistently? I gave it a few tries, and even tried with a portable Blender installation and the BlenderMalt build from Github, but I still can't repro it. :(

Strange. I cannot reproduce the bug too. I am sure I can reproduce the bug every time I switch to combined Vec4 when I open this issue.

[pragma37]

Ah... too bad. Having a consistent way of reproducing the corruption would be massively useful.
I'm closing this as a duplicate of #560.

I personally will not use the combined Vec4 math in the future. I will use the individual one instead

Note that this is very unlikely to be related to any specific node, all Malt properties follow the same code path.