Guild Wars 2

https://leaderboards.guildwars2.com/en/eu/achievements

I am logged in.
Sorting out by database works.
Sorting out by server works.
Sorting out by friends works.

Sorting out by four of the guilds i am in works fine.
Sorting out by one of the guilds does not work.
https://leaderboards.guildwars2.com/en/eu/achievements/guild/Midnight%20Mayhem

When i try to filter by it, the list ‘greys out’ a bit, as if it was refreshing and updating, but then all i’m getting is the same list as before, aka not filtered by MM.
I can filter by MM in North America database, but we’re an European guild – and this is where it does not work.

It is a pretty important thing, as it’s the only way to tell members’ activity at the moment, judging by the last time they had obtained an achievement point – and it’s nigh impossible not to get one daily done even in 10 minutes, so it’s a pretty decent way of finding who’s completely inactive.