Ehlo. I have the exact same problem. Uninstalled both game and mod - same result. Did you find any clue as to what Mod is making the game hang?
I notice that mod installer says: "Attention: Unsuitable version of the installed client detected. Installer is intended for 1.2.0". Even though I tried to reinstall the game completely...
Update: I also tried clearing the cache. Same result - or lack of