Troller Question About Changes?

[SylvanMansion]

With the recent plethora of changes, is it possible that what was included has negatively impacted Controllers ( and possibly Domintors)? My characters are getting defeated alot, sometimes before fully entering a room or activating any powers (while stealthed AND invisible). All of my trollers are getting more aggro and attacks when barely entering a mission or a even room even if they are the last hero to arrive.

 

Please advise.