Why are the Mega's we've attended not seen in the challenge checkers ?

Question

On profile stats i have attended 5 Mega events what is correct.
But on Challenge Checkers we only see two !
How come and why ?

Answer 1

You have only attended two Mega-Events. You have also attended three Block Parties, but they are a separate cache type. Most checkers will consider megas and block parties to be two different things.

(In contrast, the Mega badge in the Profile Stats counts Block Parties to the Mega-Event badge.)