Just leveled up my second character to 100 and built the Lumber Mill Lv.2.
I already got the achievement for Lv.3 blueprint on my main and was thinking of directly upgrading it on my freshly leveled character, but it says that I miss the plan for that building.
Weren't Lv.3 blueprints supposed to be account wide? I really don't want to hunt for that Petrified Ancient again.