Just to note: I do not want to place this in the Bug Forum because I am not sure if it's actually bugged or I am incredibly unlucky.

When I hit 50 on Ninja about a week into the patch, I farmed mobs to test the effectiveness of Mug and its loot ability. I was rather successful as I would get about 3/10 additional loots from Mug with Kiss of the Wasp up.

Since then, I've noticed Mug not stealing (making sure I did NOT have Kiss of the Viper up). I've tried with and without buffs up, low level mobs, same level mobs and I cannot get Mug to proc again. I've tried for days and no additional loot.

Am I extremely unlucky or is anyone else experiencing this?