Yea, after some great patch had the same problem. My Necro was the first character I made, and he sure is a nice character to play with as Minion Master. So it is said the bug appeared 9th September, having to do with the Flesh of the Master Trait Exploit Fix. Hey what…Exploit…huuu yea right, exploit. ;D
So from 9th september to today it didn´t get fixed, I suppose it will be a long time for that bug to get fixed.
Most dissappointing thing about this bug is that in NOT ONE forum topic about this bug, there is NO, I mean NOT one of arenanet, telling us anything like: yes we now of the problem, we´ll get it fixed soon.
Nothing till now…now that is a problem…this bug is a Major Annoyance for a minion master…and please people I don´t want to have someone say to disable this trait, I want it, and thats it…i really put some coin into GW2, and sure there are a lot of bugs to get squished, but please arenanet, fix this major Necro bug.