Invisible Lights now showing up against matte objects in V-Ray 6

[MattClark]

I recently upgraded to 6, and I've noticed what I think is a change in behaviour, which is that V-Ray lights which are set to invisible now render as visible if they are in front of a matte object.

Is this by design? I don't think it used to work this way did it?

[hermit.crab]

You're right, this didn't happen. I've logged the issue (internal bug-tracker id: VMAX-12389).