How do I fix the sound on text messages coming from only one person?
there is no sound when only one person texts me. I get sound on all my other incoming texts.
iPhone XR, iOS 17
See the following from Change message notifications on iPhone - Apple Support
Mute one conversation
You can stop getting notifications for a conversation while you continue to receive its messages.
- Open the Messages app
on your iPhone. - In the Messages list, do one of the following:
- Swipe left on a conversation, then tap
. - Touch and hold a conversation, then tap Hide Alerts.
- Swipe left on a conversation, then tap
If that isn't the issue, see the "Change the notification sound for certain people" section of the same Apple support article.