Guild Wars 2

I remember a month ago getting rewarded karma for running fotm but recently I have been running a fotm at least once a day for 10 days and I have not receive any karma from them.

Has the karma reward at the end of the 4th FOTM been remove? or is there another reason why I am not getting any from fotm?

Your personal FotM must be Higher than lvl you are doing.
http://wiki.guildwars2.com/wiki/Fractals_of_the_Mists#Personal_Reward_Levels
Lately I’ve done lower fractals and I received ~9k from 16 and ~4k from 32 so it’s working.

you get the most extra karma from doing 10 levels below your personal level. I also highly recommend popping a karma booster and ice cream food as the 4th boss is doing their death throws. Highest I’ve got is around 16k karma. you get it when you get the daily chest (or at the time you would normally get the daily chest, if you already got the daily that day), which is usually a few seconds after the big lootable chest appears.