Spinderman

Hi there, maybe someting is wrong with compounding gems. I had level 2 ruby in my warehouse (sitting there for a looooong time), and i craft twice level 1 ruby, than i compound it to level 2, and with 2 ruby - lv.2 i want to make it lv.3 and it fail..... Which will be pretty normal, but with current event, it should not FAIL ....i am talking about Compounding Rate Bonus in Marvelous Mermaid Chest event.