Incorrect notification that I don't have enough energy for skill

I've already /bugged it but i was wondering if anyone else was having this problem. during a fight, i'll get errors that i don't have enough energy. i'm even getting these errors when i have over 20 energy and i'm trying to cast a 5 energy skill. due to the fact that timing of skills is very important in this game, it has made if very difficult to be effective.

Make sure you are on a target also. I thought many timei was getting the samething but i was not locked on to a target.

i am on a target, this is something i've been attacking for some time, and i'll still be attacking it with my wand, but it will NOT let me use a skill, even when my energy has been over 27. sometimes it's a 5 energy skill. sometimes, if i use the shortcut key it won't work, but can click on it, or vice versa. othertimes nothing works. i'm not getting any energy denial spells put on me, so that isn't it.

there might be a nature ritual around you. there's one that makes spells cost +30% more energy to cast.

nope. no nature ritual, no skills were being used against me either. this has happened against those aloe types in post sear green hills, as well as other areas and mobs.

someone else also had this problem, so i guess it's not just me.