"Flash Learning Not Supported" with Metz 48AF-1 for Pentax
I am trying to set up my Metz 48AF-1 flash with my Cactus V6. I have the latest firmware versions on everything and the flash works fine on my camera. When I try to setup up a new profile the Cactus V6 will flash the Metz 48AF-1 one time and then "Flash Learning Not Supported!" is displayed. It will not go any further. I've tried Manual and TTL modes and no matter how I set the flash up I get that message every time.
Any help would be greatly appreciated.