Could it be an option that I missed to select? Last time it happened again that I missselected a snake, just because I wanted to be really quick with marking and in the end I was slower because I had to reset the cache :)
If it would be possible to implement a non-elite mob filter, I could simply mouseover the trash mob group in Karazhan (after oper event, gold street) where about 3 non-elite run around and 1 elite, all in the same pack. As for now, I have to manually select every mob and check if it's an elite mob or not according to mark them.
Please lead me to the right direction when this feature already exists