DirecTV Stream on Roku - channel guide issue

Up until today, I’ve always been able to press the down button on the Roku remote to get to the guide. The down arrow no longer does anything. Sometimes hitting the back button will work, but usually just once before it starts asking if you want to exit the app. I’ve deleted the app and re-added, checked for updates…no change. I’ve even restarted the Roku and check for their updates, though I don’t believe this is a Roku issue (this question came up in the forums last yesr when the same behavior occurred due to a bad update). Any work around here?