Random bug on my device with latest firmware. I had mlr open for about a week with five or six buffers and a grid attached. I came home and the OLED was turned off and the grid was no longer responsive. All keys on the device were unresponsive. The power LED on the back was orange. I plugged in the wifi dongle and the rear LED blinked white a few times so the device was still on.
I don’t have a serial debugging setup so I couldn’t get any information from the device. Doing a hard reset made everything better.