houdini22.0.238 inside hair guidegroom node network viewport visualizer marker only shows the attribute value of the first primitive
I see the same attribute marker value displayed at the root of each guide hair even though the spreadsheet shows a new value per primitive.

Im also trying to visualize guide hair attribute values as color but it also only show the color of the first primitive value.

The visualizer doesn't seem to traverse all guide hair curve primitives .

H22.0.238 is a pre-release version, so is that maybe a typo? Are you using 22.0.368 perhaps?

"hair guidegroom node network viewport visualizer marker" wow that is a lot of nouns in a row! I had to read it a bunch of times to understand what you were saying. I take it you mean a Guide Groom obj node and not a SOP?

The id prim attribute displays correctly for me as a marker.

It also displays colours correctly for me as long as I turn the material display off for the viewport, as the Guide Groom object node has a default material that displays the guides in red.

A file would be helpful, or failing that, a bit more detail about the nature of the attributes you are trying to display along with some screenshots.

Liesbeth_Levick
H22.0.238 is a pre-release version, so is that maybe a typo? Are you using 22.0.368 perhaps?

Sorry the build version is 22.0.368

I turned off the material and it changes the color of the guide.
When I try to visualize a marker of the ID attribute they are all 0 but the spreadsheet shows each primitive ID is unique.

That seems like a bug - please submit a bug report to support along with your machine specs.