12 days of spring

That showed up for me when I used Bluestacks to play on a computer so I could get T3 sooner. If you play on iOS and you then played on a non-iOS system at any point, it loaded this years-old challenge that was Android only that is never coming back. So it’s just kinda stuck in your achievements. That’s my understanding of it anyway when I looked into it.

It was an event a couple years back. Hasn't run since and probably won't. There is other threads about this, maybe trying searching for them. Might find some sort of dev comment. Good luck

Yep, it's an old series of events they never finished and have no plans to run again.

They are trying to figure out another way to satisfy the achievement, but it cant be removed it has to be satisfied by another event.

Lame. Thanks for your help. Yes I got t3 earlier than iOS