Sadly the problem existed before I ever installed any mod. Besides none of these mods are for multiplayer...
And I've searched a long time for a solution the bug existed before any mod was created...
And I've also reinstalled the game, deleted the folder, took me one day, I've even installed the dlc one by one, I expected to see the challenges to reset, as some of them were missing...
Now one third of the challenges are bugged, mostly weapons....
