Xbox – Multiplayer freezing at main menu

I had the exact same issue, and the fix for me was to only install the install disc, and play the game from the other disc. Rockstar informed about this bug, saying it was some related to some texture-streaming issue (if i recall correctly).

(This should maybe have been a comment, but since I don't have the rep to write comments yet it will have to be an answer)

try cleaning the disk with a wipe or paper towel etc. (dont add water) and try it. Also maby it's your blueray lens you chould buy cleaners online.

if your playing online try checking your Internet connection. but as David toh said try giving some more info. ex: are you playing online, how often does it freeze, and if the game is new or used. (which often times helps a lot)

hope this helps good luck.