Why is my contact card and my mother’s merging?

It’s been about a month already of this going on, I have downloaded iOS 18 in hopes it would fix on its own, but it has not. We do not share any information and have completely separate phones, and when I try to change her contact info back to her details it pops up on my id card as well. Her information is showing up as mine and likewise, if I try to change something on her contact (ex: the profile picture) it will also change to my profile picture as well. Whenever I text or call her my information pops up as if I was calling myself , but does anyone know how to fix this? As I said, none of our phone numbers, Apple ids, gmails, or names are alike so I don’t see why this is happening.

These are the Developer Forums, where developers of apps for Apple's platforms ask each other for hints and tips on coding.

Your question is more of a product support one, so I'd suggest you ask it over at the Apple Support Forums. Thanks.

Why is my contact card and my mother’s merging?
 
 
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