The exact same thing happen to me too, I cleared breakthrough to check but still reckons I've "claimed" everything. My exam event/ninja mission is bugged also, did your one work? I've cleared all 120 exams however after sweeping, only the first tier was claimable.
It looks like the later tiers can only be claimed once during the week unlike the one's the specifiy them being daily, hopefully we can get an update on this.
This post was last edited by Orinshi at 2017-4-27 13:54