When you get DMs from random npubs, they pop up in different spots depending on your Nostr client.

If you throw your npub into #eNuts, it uses it to show your contacts, and it uses a different npub (created by the wallet) to send funds.

Not the most straightforward thing – needs some TLC.

Oh, and some relays aren't cool with these new npubs dropping DMs without any profile info (spam filter on high alert).

If Nostr send does not work, you can grab a token from your wallet and paste it into a DM in your Nostr client.