Well, it's not uncommon for Whatsapp to not show contact names, especially if you've recently switched phones or restored your device to its factory settings. It's like starting fresh, but sometimes that means losing some of the conveniences we've grown accustomed to, like being able to see our contacts' names. This can be especially annoying if you have a lot of contacts with similar numbers.
A good example of this is when you're trying to plan a group outing with friends, and you need to send a message to everyone at once. But, because Whatsapp isn't showing contact names, you have to manually check each number to make sure you're sending the message to the right person. It's like trying to solve a puzzle before you can even start the conversation.
