Do you need to have them in your inventory? I'm uncertain how the discovery process works
English
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1. no one gets any new or old exotic until the 15th 2. the only ones that are unlocked are ones you had in the vault or on your guardian, i.e. your inventory
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Just in possession. Doesn't matter which character or if it's in the vault. As long as you currently own it. Grimoire would've been a better choice, but this works I suppose