Dinner Party - Guild Achievment

[Brazilian PVP]

1. http://www.db.pandawow.me?achievement=5026/dinner-party

2. Me and my guild are trying to complete all guild achievements. And then, we completed 1500/1500 [Dinner Party] and found a bug in which we can not get the achievement. see below

2.1 http://imgur.com/GbGRRLf

3. Normally, the achievment was to be completed.

4. 24/06/2016

5. Fun

6. 5/10