I downloaded the trial version of AP and installed plugins as per instructions on the video. There was no problems and the software worked well. I paid for the full version and when I follow the same instructions as before, here is what I get:
Edit-Preferences : there is no preferences under edit, its under the Affinity Photo not Edit
Affinity Photo-Preferences : software totally crashes and shuts down.
I cannot get the software set up to do anything further and so for now have requested a refund.