I have the SLING streaming service on all 3 of my LG OLED TVs. I've updated the SLING app on 2 of them and now have a problem. Both TVs default to the SLING app when I turn them on. I am able to watch streaming content but can't exit the SLING app. This only started happening after I updated the app. For this reason I did not update the SLING app on my 3rd TV. Has anyone else had this problem? Is there a fix?