The issue has been observed on Epix2 and MARQ Gen2 devices with recent firmware.
This bug potentially wasts battery life.
See the following videos for evidence of the issue:
https://photos.app.goo.gl/3mC9UhDpQFa3zKwLA
After considering the display brightness I assume that the watch is in low power mode but I'm not 100% sure.
The videos show my watch faces running the burn-in protection toggling pixels in 1 second intervals rather than 1 minute invervals.
As a workaround I will change to toggling pixels by checking System.getClockTime().min % 2.
In one of the reported cases the user had the watch face stuck in this state permanently and was only able to escape this state by switching to another watch face back and forth.
