It appears that there might be a compatibility issue with Luna Unit Frames. DPSMate still works but it was kind of buggy, after disabling addons and trying them one at a time I get:
DPSMate_DataBuilder.lua:1823: bad argument #2 to strfind (string expected, got nil)
The addon was less buggy on my character that uses XPerl. I also was having some bug issues that were related to buffs/debuffs fading but I wasn't able to grab screenshots. I got one error related to a rogue in my group's Backstab ability that said to screenshot and send to you as well