Hi BK, thanks for the reply, the problem is not converting the attribute, that works but only (at least in my testing) if you are importing a solid "baked" mesh, if you are dealing with the Native Instances that
SOP import creates when loading packed geometry then Octane is unable to load displayColor or any other attribute, I should stress how important this.
I created an hip file illustrating this, in the file if you turn on the Unpack node you will see displayColor load just fine since
Sop import can't create instances from this
but if you leave it off then
Sop import create the Native Instances and the problem occurs. I also made a branch illustrating how karma does this no matter what.
PD: I stashed everything so even if you get a couple of errors it should work fine.