The only thing I've really heard about Bundy/Butler is not getting along during Hairspray,and then competition with other shows.
Mostly, what you hear about LBB is diva stories. Obviously, you never know if they're true, but also, maybe it's not that uncommon and such a big deal to have a diva. Goodness, I look at the people I do musicals,and even MYSELF sometimes, and that stuff happens in theatre. Not that it's an excuse to behave poorly and unprofessionally, but still.
I mean, Denzel Washington? Gun to my head..of course.