Same for me. the emblem is in the TWAB but not in the rewards.
Your link goes to a private link. Not sure if also bugged or on my end.
English
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But I don't understand what you mean by the fact that it was in TWAB, TWAB shows the emblem for buying a t-shirt/seal/patch, but not the one that should be for triumph in the Moments of Triumph seal
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This may be a photo hosting problem, there are just screenshots that there is a token, a triumph and there is no emblem on Bungie Rewards