Fortunately they are still very much friends, but this morning Max has decided to play with each "group" separately. I think it is sooooo smart that he learned independently who is "Disney" and who is "Sesame."
They still travel all together (Max is VERY into carrying around his lil' friends these days)...so all is well.
Notice that while the "Disney" friends (except Mickey) are waiting their turn, they all are laying face down. Who knows?