On Reboot Screen Cycles: Red, Green, Blue, White, Black

upon reboot the screen cycles through: Red, Green, Blue, White, then Black. In order to get past this i have to do a hard shut down the machine (press and hold power button till unit shuts off).

This is on my Librem 14. Any ideas of why it does this?

Is it PureOS?

Correct. Up to date as well.