multimatte material does not work with fur

[Gijs]

as soon as I apply a material to a fur, the mask won't render, see attached simple file. Even when I don't apply the fur to the red object, the multimatte channel will only contain masks for the green and blue material.
multimatte_bug.zip

[nikoleta.garkova]

Hey Gijs,

Thanks for the pointer. This is now logged into our internal bug-tracking system under VRW-3261 for developer investigation.
Will let you know when there is any update on the matter.

As a workaround, you can use other Render Elements, i.e. Material ID Color, depending on your needs;

[nikoleta.garkova]

Just to add an update - this is fixed in our internal builds and will be out with a future release. Thanks!