I don't really think they do.
Sammy and Eddie got resolved instantly.
Britt and Rosa still worked together, multiple times, without incident
Andrade got suspended and came back
Jack Perry is serving his suspension
Jeff Hardy served his suspension and is on probation
People disliking each other or having substance abuse problems isn't really a backstage problem, that's pretty much any sports or entertainment workplace. The only difference is that Punk refuses to let shit go and refuses to resolve things by letting things chill out. Just my opinion on the matter though. AFAIK every other issue was always resolved, and I don't expect everyone to love each other