Hello Gordon,
Good to see you here, and thanks for your great work on Hot Potatoes. I've just installed Hot Potatoes 7, and have never used previous versions.
I'm trying to make activities and quizzes for my Moodle using Hot Potatoes 7, but when I do the example JMix activity and then try to add it using the HotPot plugin, I get only part of the activity, without the ability to drag and drop the words.
I've checked your documentation, and it looks like 6 is more compatible with Moodle 3.8, could that be the reason?
Andrew in Kyoto