The case of the missing text messages
Recently bought an iPhone 12 and, over the past week, any text messages to or from my sister are hidden/invisible. I get hers and she gets mine, but I can only see them if I look her up in Contacts and click on the text message icon. I have no idea how I did this, and searching the community and the internet hasn’t turned up an answer. Help, please!
iPhone 12, iOS 14