The *new* launching is giving me trouble.. I can't even start the game..

Whenever I start up the new launcher that just came out a few days ago, once it gets to closing the launcher and opening the game it freezes at Mojang... and doesn't do anything. This only started with the new launcher I have not had this problem before. Please fix it!
All I did was open the launcher and start the game I don't know what is going wrong... ;(