Let's take a wild guess, your emblems were full, and you didn't read the 10 posts bungie posted stating if your emblems were full you needed to delete 1 to pick up the crimson emblem.
But I can find time after 1 week to -blam!- and blame bungie.
English
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Not that emblem. And no they weren't
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When the deadline says 11:59am and at 11:50am the redeem code button says the error 2021 event is expired, people are allowed to be upset.