I bought this monitor late 2019, and out of the blue the monitor reset all of my settings (including color tuning that took me forever). When it came back on, it flashed red for a moment and then gave me the yes/no Light in Motion option. Whenever it went to sleep after that, it would flash red/green/blue/white/black. The only way I've gotten it to stop doing that is to disable DisplayPort Deep Sleep.
So, does that mean my display is defective? Is this a known issue with this monitor?