You didn't list any but YouTube, the channel guide keep coming up. Just call app failures in. Samsung may guide you on firmware updates and if there are changes in apps.
I have a Samsung BD-H6500 Bluray. My apps and Smarthub have worked fine up until this past week and they will no longer open. When I try to open one, the little circle keeps turning endlessly and after a while I am returned to the home screen. I checked my network connection and it is fine. I am able to open up my browser and use it, so I am definitely connected to the web. I also have a Samsung TV and have been able to use my apps fine, so I am concluding that it is only the apps on the Bluray that are problematic. Can someone let me know how to get the Bluray apps working again?
Thanks in advance