Bug - Archetype Advanced Action

I’ve enjoyed the game for years, but it wasn’t until this week that I bought the advanced action Archetype. During Interaction, I was able to buy all of the available Advanced Action cards by doing the following:

(1) Activating the bottom ability of Archetype
(2) Interacting at a site and buying an Advanced Action card for 9 Leadership
(3) Going back to the map screen
(4) Clicking on the site again.

After (4), all my spent Leadership returned. Then I was able to use Archetype again to buy a second card.

I had the persistent Leadership boost from Murakh’s blessing. But I’m not sure if it played a role.