Pheryll
Set Designer
When the first FA was announced many moons ago, it was stated that badges would be able to carry over. That never happened. INNO decided a clean slate would be better. Now every now and then there is a glitch, and you get some badges you didn't earn at the beginning of an event.
The badges carrying over was implemented on Beta and then removed before the first live, but the removal was not complete. The completed badges did not carry over, but the progress toward the badge did. So uncollected badges could be collected the next FA. At some point after the FA changed to the quest palette format, the progress was wiped clean so that it would not carry over from one FA to the next.