The episode is there alright; I just saw it. However, they skipped the ending theme and went straight to the (new) Tina segment. I know they skipped it because the opening credits still referred to an ending theme (this time a new one). When I saw episode 49, the ending played as usual, but it was an "NC (non-credit)" version. It didn't even display the lyrics (which would be in romaji in this episode) like it usually does. I wonder if this is why the episodes were delayed (i.e., because of problems with the song(s) or something).
Cartoons aren't "just for kids"...but they're not just for adults either. They're for everyone.