I just had to post an experience that I just had that summarizes why I love this community.
Just got 3 new inovelli LZW42 coloured bulbs to import into my setup. Before, I do this, and go romping down the "ghost zwave device" rabbit hole for the upteenth time, I'll just do a quick search to see what other issues/advice people have.
Sure enough, there is an issue with these if you pair with security. No problem, just run the inclusion from a z-stick that is paired without security. Problem and solution found within 2 minutes.
Bingo. 2 minutes later, bulb included without security, works perfectly.
This is why I like this community