Cryptomatte for vrayinstancer instances?

[Nagelld]

Hi,
I seem to be unable to get any cryptomatte render elements on vrayinstancer instances, if I eye pick the instances I get "No Data Available".
Just found out that I can get the "Node Material Name" to work, but only if the assigned material is a multi-matte.
Is this intended behavior? I would expect to be able to get cryptomatte layer when I'm using vrayInstancer. Would love to be able to get the node/material names too.
Attatching my test scene

[hermit.crab]

Thanks for the report and provided scene. There is a known issue with Cryptomattes and VRayInstancer (internal bug-tracker id: VMAX-9550), where the Cryptomatte ID duplicates the last created objects' ID, rather than getting its own. This can be used as a workaround (simply create a random object, so that the VRayInstancer becomes selectable). The Node material name cryptomatte seems like something else, which I'll include in the mentioned log. The material workaround is quite interesting.

[Nagelld]

Good to know its logged
Not quite sure I understand the workaround, should I create the object right before we render? Would this work when rendering with backburner/deadline?
Right now I think the "node material name" is more consistent/predictable.

[hermit.crab]

Good to know its logged
Not quite sure I understand the workaround, should I create the object right before we render? Would this work when rendering with backburner/deadline?
Right now I think the "node material name" is more consistent/predictable.

Yes, the "node material name" is certainly more predictable. I just mentioned the other one (haven't tested it through network rendering, though), just in case.