Here's an update to my issue. I set the NUC device to not power on or off in the Harmony software and just assigned a Power Toggle button to the Watch Intel NUC activity on the remote. After watching a few minutes of a movie, pressing stop, then wait 2 seconds, then press Power Toggle on the remote, the NUC turns off but 2 seconds after turning off it turns back on and loads up LibreELEC once again. I'm not sure if I will have this same issue running a completely different app on my NUC. Also once in a while there will be no audio when playing a video, requiring me to exit the video and reenter the video. I remember having this same no audio issue before with a 4th generation i3 NUC I tried out 2 years ago but with OpenELEC. I had the audio device alive setting set to always but now I set it to off to see if that fixes that occasional no audio issue when playing a video.