Since the 9.4 update I have been having issues with my Roku. The images work fine while scrolling. However once I select a video to play (regardless of channel) the screen turns black and I only have audio. Initially i was able to turn the tv off then back on and go back to the video and it would play as it's supposed. Then that work around stopped working and I had to do a system restart every couple of days, then it turned into every day and now it's not working at all.
Roku device model: 3700X Roku Express -serial number: YU007L768122 -device ID: 7G2687768122 -software OS/version: 9.4 build 4190-28