Companion Limit Glitch

My Beastmaster currently has a max companion limit of 4. I was playing with 4 wolves when I randomly was reduced to 2. I checked my gear and ability point allocations, and nothing seemed to have changed. My character sheet still says I have a max companion limit of 4 but I can only summon 2 companions (2 wolves). Is this a bug? Am I missing something? Anyone else have this issue? I submitted a reported.