Hello yehonatan147,
Welcome to Apple Support Communities. It sounds like you're having trouble with recent and frequently used emojis updating on your iPhone. I'd be happy to share information that may help.
First, restart your iPhone: Restart your iPhone.
Next, be sure your device is fully updated: Update your iPhone, iPad, or iPod touch. Be sure to have a current backup prior to updating.
If you're still experiencing the same issue, remove the emoji keyboard and add it again:
- Go to Settings > General > Keyboard > Keyboards. Then tap "Edit" and delete the Emoji keyboard.
- Then, add it again by going Settings > General > Keyboard > Keyboards > Add New Keyboard. Then add the Emoji keyboard again from the list.
I hope that helps. Take care.