@mykle1 So at some point my MM did go black again. I commented out my iframe module and then restarted it and now it has been stable for 6+ hours with no issues. This leads me to think it is something with iframe.
// {
// module: 'MMM-iFrame',
// position: 'bottom_center', // This can be any of the regions.
// config: {
// // See 'Configuration options' for more information.
// url: ["http://192.168.1.132:81/livestream.htm?cam=Cam1"], // as many URLs you want or you can just ["ENTER IN URL"] if single URL.
// updateInterval: 0.5 * 60 * 1000, // rotate URLs every 30 seconds
// width: "1280", // width of iframe
// height: "720", // height of iframe
// frameWidth: "640" // width of embedded iframe, height is beeing calculated by aspect ratio of iframe
// }
// },
I am not sure what else could be causing it, or else I would try to do some more troubleshooting myself.