Changing channels on TV app with remote
I'm running the Spectrum TV app on a Roku Ultra. I have an Inteset 422-4 universal remote that is set to control the Roku. I've programmed the number buttons to send the codes for the numbers to the Roku. The button presses seem to register, because the Roku's front LED flickers when I press them (as it does for other buttons), but the app doesn't respond to them. Is the app not programmed to recognize the numbers? If it recognizes number buttons on the Xumo, why not on other streaming devices?