ubcsdelta

If the menu item is missing then unfortunately have no idea.
If you're saving recipes to $HIP/otls than it might be helpful to add a project path to hpath
The most convenient way is thorough package file. You can run this snippet in your terminal while replacing <VALUES_IN_BRACKETS> to those relevant to your config


echo \
'
{
"hpath": [
{
"value": "<PROJECT_PATH>",
"method": "append"
}
]
}
' \
> /Users/<USER_NAME>/Library/Preferences/houdini/20.5/packages/<PROJECT_NAME>.json

ray_roamer
I noticed there's no Bind node in the MaterialX builder -- is there a way to get the vertex Cd there too?

Please try this

USD Prim Var Reader node
Var Name displayColor

Please confirm that the menu item is missing (see attach)

macOS BigSur, x86