Hi @Exodia69, thanks for reporting this! We’ll look into it and have added it to our list of issues for our 2.2 update (Found over here). If your tasks list is still showing that your current task is for the unlock a weapon task, send a support ticket to our support team here, and they’ll get the next task set and the reward mailed out to you.
Also to just avoid any confusing in the future (and what we should have done in the first place, admittedly), I’m locking this thread and would like everyone to please redirect themselves to the current 2.2 known issues thread.