This type of issue will need to be addressed by having the unit serviced. You can use the following link to find a list of service centers near you that can do the repair: http://www.samsung.com/us/support/service/location
I would love to use that page to find a service provider. However when I put in my address it says, "This page can't load Google Maps correctly."
I have tried in both browsers: chrome and Brave. Not sure what to do now.
There are two service centers for this area.
PLAZA ELECTRONICS & APPLIANCES
1518 DECATUR PIKE
USSI - UNITED SERVICE SOURCE, INC.
9145 Ellis Road
USSI is a national center that works with local repair providers to cover specific areas.
It is possible this is a software concern. To check on this, try to power reset the device by unplugging it for a few minutes and plugging back up. After that, you can try to check if the TV has the latest update installed.