DESFire UID emulation not working?

Hello, apologies if this has been asked before, but does emulating a DESFire card’s UID work? I’ve scanned an EV3 and EV2 card, emulated the UID, and neither the reader nor my proxmark pick anything up. I am on FW version 0.71.1 and I also saw this issue on 0.70.1.

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Nothing on mine works.
Emulated everything possible and none of it works.
Watched every tutorial a 100 times.
Help!