Be sure to be online when it finish.
It's so stupid, you should be able to claim your reward even hours after it finish.....
I clicked on a 30 min common before bed, when I woke up it let me claim it.
Being unable to claim rewards that become available while you're not in-game is absolutely vile and better be a god damn programming error
got kicked out of game less than a minute before a 4 hour mission finished when i logged back in i never got a reward
Logged in after letting an 8 hour epic mission finish offline, only to find that the mission was gone, and there was no reward. Good luck finishing anything with this buggy mess.
I have experienced the two situations. One time a finished the mission offline and claimed later with no problem. Then i started another mission and thought it was ok to finish offline.... but when i logged it was gone. So yeah its strangely buggy.
Hi all,
I read the mixed comments about the issue so I deliberately tried out claiming missions late.
I claimed an 1 hr mission 6hrs later and it worked fine, and also I claimed an 8hr mission after an overnight sleep and it also worked for me.
In both cases I wasn't online. (even the browser wasn't open)
The mission you do is listed at the very bottom of that window with the 'finish' button changing into a 'claim' button.
So I think the bug must come from somewhere else. (i was thinking on a mission reset sometime during the day, but that's not it, the other missions were swapped)
So as far as I know there is no need to force yourself to stay online (but that doesn't mean i discredit others bad experience, other bugs might cause you lose the progress)