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When is the Breakthrough reward determined?
When you collect the last stamp? When you click the safari box?
I don't want another bug; but I don't want to needlessly miss FR rewards.
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Answers
Apparently the breakthrough reward is determined by the day you completed the research task that is used to claim the 7th stamp, not the day you claim the 7th stamp.
Like the OP, I waited until today, December 1st, to claim the last stamp with a completed quest...and a Shedinja came up.
I would have needed to complete another task today and use that task for the 7th stamp in order to claim a non-Shedinja.