Advice???

Let me see if I can give y'all the short version of my dilemma. I have 4 bridesmaids, My friend if 18+yrs (2 of my bridesmaids), my soon to be step daughter (bridesmaid) and my good friend of 8 years (my MOH). You may ask why I didn't choose one of my friends that have known me longer as my maid of honor, well I believe that my current maid of honor has my best interest at heart and we're really listen to what I have to say and will execute things the way that I would like them to be. My other friends although they have known me longer I feel that they would put their interest first. In any case I guess they are essentially taking it out on my maid of honor because they are disagreeing with what she is saying in stonewalling her ideas to the point where my maid of honor doesn't want to plan with them she is just planning with my soon-to-be stepdaughter-in-law so it seems like it's two people on each side. I hate that this is how it is because I really thought that they would all like each other but that is not the case. Should I just let everybody be as they are or should I call a meeting and put my foot down about their attitudes towards one another. They haven't had any nasty fights but it is definitely tension when we're together.... Help