ringtone to text tone

I use to have a text tone of the Kim Possible. But when the new iOS 17 came out I wanted to check out the new sounds and it went away… I thought I had to buy another one so I did. Still didn’t show up on my text tones… Then I thought check my ringtones part of it and there they are. My two Kim Possible text tones as ringtones… It won’t show up in text tones. It’s less than 4 seconds long so I don’t understand how they showed up as ringtones… What should I do? I just want my old Kim Possible text tone back 😭