I'm having problems with my Roku Express 4k+ freezing up on commercials. The audio still plays but screen is frozen. I have to change the channel and then go back to the channel that was frozen and then it's fixed until next commercial. I have reset and its good to go for a while but still is happen time and time again and again. Im so disappointed. It did not do this when I first got it. I've had this for about 3 months. It started a couple months ago.