Why isn't Dropped Item in B2W2 appearing?

Question

I’d like to start the Yancy/Curtis sidequest but the dropped item (the X-transceiver) does not show up in Nimbasa City. It isn’t in my bag either. Why is it not appearing, and is there a way to get it to show up?
Picture proof, if you really need it:
https://i.imgur.com/l2ZlCXp_d.jpg?maxwidth=640&shape=thumb&fidelity=medium
https://i.imgur.com/cuyvAt1_d.jpg?maxwidth=640&shape=thumb&fidelity=medium

(I’m fairly sure I already posted a question similar to this, but I included pictures here.)

Comments

I have never heard of this glitch. Try searching through your boes to see if you ahve any of the pokemon Curtis give you

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Sorry for the very late reply, but I don’t see any Pokémon from Curtis in my boxes. Could it really be a glitch?

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Could be, but sometimes these older games will just misbehave for a while before going back to normal, like that glitch with the Join Avenue shops. If this isn't it, you may want to check Nimbassa City's park and see if Yancy/Curtis is there to trade. If not, look around for the Dropped Item. If that doesn't work, then I've got nothing...

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Is the cartridge legitimate?

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Nothing about the Dropped Item appears on Bulbapedia's lists of Gen V glitches, and we haven't confirmed if the cartridge is legitimate. Can we close this question under a lack of information?