After leaving the valentine detective agency to go and have the fragment read my weapons ( which are all viable in my inventory and favourite slots) can not be used. I can not even melee enemies. I have gone back to a save point within the office and I can equip a gun as soon as I go out through the door into diamond city the weapons can not be used. I have progressed upto where I have meet the scientist in the glowing sea but as I can not use any weapon I can not progress any further. At this point any help would be appreciated but I feel for me the game is dead until patched *hopefully