Boosters not working

#1 - Oct. 23, 2013, 8:02 p.m.
Blizzard Post

I stacked my birthday present booster, guild banner, food and karma booster, but I didn’t receive any bonuses karma from using my liquid karmas. Is this a bug or did they change it so you don’t get bonuses from liquid karma?

#2 - Oct. 23, 2013, 8:35 p.m.
Blizzard Post

From the Aug 20 release notes:

The amount of karma granted from consumable karma items has been increased. Karma boosts no longer affect the amount of karma gained from consumable items.

https://forum-en.guildwars2.com/forum/info/updates/Game-Update-Notes-August-20-2013/first#post2717866