Trouble downloading updates

Hi!
I recently bought a copy of mcc, and after the 20 GB patch i was ready to have some fun in multiplayer. I thought there would be an other update to download (all the ones that were made to make the mp playable) and so it was, the only problem is that when i select the “find match” option in the menu, a window pops up with a message that says that it is downloading the most updated matchmaking data. But i’ve been trying to download that stuff for 2 days! Maybe the size of the update is very large, but i’m starting to wonder if something’s wrong. It does’nt even show any type of download progress… Not even in the Xbox one menu or stuff like that… Help Please