One of my contacts has a "no sound" or "mute" bell next to her name in my text messages, phone doesnt make any sound when this person text, limited to just her. Checked under her contact settings, nothing is set to mute. How do I fix this?

I had the same problem. I never noticed the bell until today but I did notice none of my daughters text would alarm. I did all the above and nothing. After trying different things I was able to fix it. Go to your text messages- the main page with a list of all your texts from everyone. On the one that has the bell with the line thru it- press on that converasation/contact for about 2 seconds and it will remove bell and you will be able to get notifications. Dont let it go into that conversation with the contact, you have to press and hold over the contacts name not the arrow to the right.

Go to Contacts > the contact > Edit and then the ringtone or text tone and change it from None to a tone.

Thank you! It was on do not disturb.

What happens when you change it to another tone?

What about the text tone? What is that set to?

THANK YOU!! My daughter was really frustrated that I never got her texts. This was the answer.

IN messages check the Detail of the contact that has no tone (top right). There is a Do Not Disturb associated with each contact in Messages. Yeah- mine was set to in for wifey. No idea how or why but that fixed it.

This worked for me too!

Have you checked in Settings > Messages > Blocked to see if that person has been tagged in there?