I sent some audio imessages accidentally to a wrong person and then i notice those messages had disappeared. What was that about?

I'm new to iphones so i have no idea…

did that person delete them? Or did they disappear for some other reason?

their phone number was an email account.

It was good theen. Some bug it was

If you go to Settings > Messages, you can change if they expire or not. By default they expire after 2 minutes

IMessages (audio) are set to expire after a set period of time (your option). Check the settings concerning that

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