I have two Raspberry Pi 3 boards, one of which has a Unicorn HAT that I bought in January.
A few months ago, I noticed that when starting or stopping a light show, the unit would start to hang for a few seconds.
This then turned into the unit hanging for several seconds followed by the forced unmounting of the microSD card.
More recently, the unit has been running a light show properly for a few seconds up to a minute, then gradually distorting before fading to red and staying on the display, even past shutting the unit down; removal of power is needed for the display to blank. Demonstrated in this video here.
I moved the HAT over to my other unit when it was freezing and unmounting, installed the Unicorn HAT software onto that unit, and the same behaviour happens over there, too.
I’ve ensured that audio is set to be over HDMI only.
Any thoughts on what could be causing this? Thanks!