I have an LG V20, which I acquired new. It is not carrier tied and I am in New Zealand.
For some contacts in my address book, when I go to reply to a text message from them, the app adds a “;” to the end of the number and asks me to check the number. If I then delete the number (including semicolon) and manually add the same contact it works fine.
This has been going on for months, and I thought I would see if anyone has ever heard of this problem.
I have purged the app and phone cache several times and made sure contacts have a preferred number assigned. It is always the same contacts but there is nothing about the numbers which stands out.