When attacked by 2 or more mobs, char don't cast spells

Hi, hopefully you can help me out.
When my char is attacking 1 mob, everything works perfect. But as soon as another mobs attacks me or my pet, my char isn't casting any spells anymore. He's just like double-clicking, and with having lvl 90 mobs my pet slowly dies without my char mending it. As soon as i'm against 1 mob again, it's back to normal.
Here's the log:

 

[10:28:51.829 D] [LuaEvents] Getting argument values for event COMBAT_LOG_EVENT_UNFILTERED

Has to be about this, but dunno how to fix it.

Here a log in diagnostic mode:

 

/push

 

seems to be an oversight in singulars combat rotation. you should give CLU a try and see if that works any better for you.
http://www.thebuddyforum.com/honorb...010-clu-codified-likeness-utility-pt-2-a.html

 

already tried CLU, but GB2 works better for me. unless there are two or more mobs^^
isn't there any other way to fix it? maybe i just got something wrong?

 

Sorry, used the wrong word
Running it now again, why i tried singular again was because CLU seems to be a bit laggy (13ms on the WoW server). Sometimes he's using the spells i preset, but unfortunately very rare. Most often not using any spells (normal "double-click" attack) and sometimes just standing in front of the mob and take his beatings from the mob^^
And still have the problem, that he's not looting all mobs. Sometimes he's flying to the next ore/herb, then comes back to loot the mob (even then, sometimes just going off the mount, and going on the mount without looting). But most often he's just leaving the dead mob lying on the ground. (loot mobs checked and loot radius 100)

I would love to use CLU, seems to be very good, but it's not working that well for me. Maybe there is a way to make it work better, would be wonderful.

But already thanks for the support! From day to day I like HB even more