Do you mean this diadem?
This has been working great, to be honest. And I had run it multiple times reaching the cap (Skybuilder Scrip) and doing it all over again.
You should check it out again as there have been many iterations, and update to the scenario. And you should back read to get the idea of what are the changes made, as for your post, which has been answered multiple times.
1. Filtering your setup for your select mats, not unless they are still locked behind the content.
2. Diadem Blast is noted on the first page, waypoints for the target.
3. Cordial use – probably not tick on the gathering setup.
4. For skill usage, some of them are still not implemented, Yield +2, and +1 are still the viable options.