Matrix Question

[GV1UK]

In the bootcamp videos I noticed that you can set a matrix source to a controller i.e. Controller 12. When I click the drop down list though I can't see any controllers in the list.

I have the latest plugin update that Access announced on the site. I am using my Darkstar and I'm a little baffled.

Anyone got any ideas?

[MarPabl]

This is weird. Make sure you have the latest OS installed, which is 4.5.3

Can you also see those sources directly on the Darkstar?