Multi Mattes broken when referencing a Proxy

[Metzger]

I create a car proxy with multimatte material ID's that range from 1-9

I then save the file with the proxy. Create a new scene and reference the proxy. When I render with multiple multi matte render elements it is randomly limiting to only 3 channels. So all of my multimatte channels are empty except 1 multi matte render element.

If I import the referenced proxy it renders fine.

Using version: vray_adv_150SP1_maya2009_linux_x64_12398

Is this fixed in a newer build?

[Metzger]

Also to note that if a proxy object created only has 1 object, it doesn't hold the material ID no matter if it is referenced, or non referenced.