Yup, there is something hugely wrong with Enyo and TuanHA cr's (all of them). They stop doing anything at all at random moments. Spamming arithmic errors in the log (not on screen). You need to stop HB and start it again to get things going, until the next 1/3/5 minutes when it goes wrong again. Hazznyo and PvXbot work fine though, so it's something with Enyo and TuanHA's for sure. Also, other CR's with Enyo run fine.
I'm on trial at the moment with this and have noticed the same, I let everyone die and just stood there. I think I might give this one a skip