Can you please provide us with a screenshot of the concern?
Have you already tried clearing the cache of your Messaging application?
Hope this finds you well!
No worries, We will stand by to assist you once we can see the blue dots.
Just wanted to check with you to see if they are other Samsung Product users who appear with the blue dot next to there name?
This may be an indication of other Samsung users showing that your ability to use features like a live message between two contacts who have a Samsung Device.
Do you see any blue dots on a contact profile that isn't a Samsung device?