After opening a Layout 2022 file in Layout 2024 and updating the reference to the sketchup file in layout, the color by material attribute is not flowing through to layout. See images attached to this post.
This is affect to my workflow, too. Please fix it soon as possible because I’m falling in love with SketchUp 2024. 
Can I assume that problem occurs in LO when your SU model is being rendered in VECTOR mode?
ChrisD
Hi,
In SketchUp, when you select Color by Material in Edges settings in Styles, then turn off Color By Tag mode, all edges will display with color by tag.
With this style, if you export to 2D DXF/DWG, you will get a CAD drawing with edges have separate colors with SketchUp 2023 and below, but all edges in white color with SketchUp 2024.
And the answer is Vector mode.
@Turnervisual @Cyentruk @curic4su
Let you know that I have submitted your findings to the eng team.
ChrisD
Yes, it’s a problem that only occurs when using either vector or hybrid modes. Raster works but is unsuited to our output requirements.
Thank you all for making us aware of this.
We are currently working on a fix.
Trent
I’m also having the same issue; I’ve assigned 2D lines a colour in SketchUp 2024 via the ‘Colour by Material’ in Style settings, however it doesn’t come across in Layout and everything in Layout just appears black
