I was playing around with PerfectTarget in Hyjal and Black Temple. This error would appear occasionally. I tried to watch when it would appear, but I really can't say. I like the idea of this mod a lot and it's great seeing how many players are targeting each mob. I have been explained the limitations for same mob names, but for Trash in Black Temple it seemed to work really well. Oh, here is the error
I noticed it was 3 weeks since update and was wondering if this mod will get any further development.