I have a very odd issue with Spectrum App. Everything is updated and internet is 100 mbps. My Roku Express + , when using Composite video connection,selecting a Spectrum channel closes the Spectrum App back to Roku Home. No error messages. The channel will play, side menu comes on, but closes app when the bottom menu should appear. I connected same Roku to modern TV HDMI and all is well. Moving the Roku back to Composite connection problem returns. If I do not configure Roku for the 4:3 TV, it stays 1080i and the app WILL WORK, with a stretched picture. Reset to 4:3 problem returns. Both Rokus new and old do this. This is a new problem, I used Spectrum App in past successfully. Other apps on Roku like Netflix are good, and I also posted on Spectrum's site.