https://www.theregister.co.uk/2020/01/08/boeing_737_ng_cockpit_screen_blank_bug/

All six display units (DUs) blanked with a selected instrument approach to a runway with a 270-degree true heading, and all six DUs stayed blank until a different runway was selected,

The bug affects 737-600, -700, -700C, -800, -900 and -900ER model aircraft, which are running Common Display System Block Point 15 (CDS BP 15) software for their display electronic units (DEUs) together with flight management computer (FMC) software version U12 or later.

Oy Vey! :-/

Don't fly on one of those to Pine Bluffs (WY), Wayne County (OH), Chippewa County (MI), Cavern City (NM), Barrow (AK), La Mina (Colombia) or Cheddi Jagan (Guyana).