my dogs have the same propblems so i had to split my pack, Bishop and Dutchess, and then Odie, Buck, and Annie. Bishop dont get along with other dogs execpt Toby but we dont have him no more, and if he gets Dutch mad shes growls and he backs of cuz shes like his mother and the Alfa Female, Annie Buck and Odie were well soicalized so they get along great, everything works until someone tries to change rank.

Could it be maybe they want more attention, or all the attention like Bishop, or that they just....found a new game that isnt exactly like it should be, i dont know im just thinking off the top of my head.
Only time will tell........