Appflow export to NFA9.5 - any success?

Am currently playing around with a fresh Netflow Analyzer 9.5 install in attempt to get a feel of the new Appflow reporting capability. (Until we get a chance to upgrade our prod deployment).

Has anyone managed to get this to work? That is, to point a Citrix Netscaler to do Appflow exports to NFA server and actually see anything useful?

All I'm getting is a "V9 flows of unknown template are received from x.x.x.x" message on the Devices page. Doing a packet capture on the NFA server I can indeed see the Appflow packets arrive. And have confirmed the listener port is set right.

The doco for this new feature appears a bit light. Perhaps some special config somewhere?