Road to Ranked Progress not Tracking/Welcome Pass vanished

Been Playing the Game for 3 Days,  having minor issues like disconnecting from server.

The first two challenges from Squad training are not progressing, despite me doing the necessary stuff at least 20 times by now.

Trying to check and repair the games files via steam resulted in the not finished Welcome Pass to completly vanish from all Tabs in the Main menu, multiple tracked challenges from the pass are also not to be found in the according tab.

How is this even Possible?