All cameras now have updated to 1.4.3 and appear to be functioning properly again.

@Solla-topee Thanks. Are you able to quantify "soon"? Are we talking single digit days soon or longer?

@MrCupcake Thanks for the reply. Where do you get that info? I'd like to be able to look myself, now and in future. Normally I will look and changenotes and decide if there is anything I want...

@Wayne-TP Why not just roll out the previously working v1.4.1 to overwrite the useless 1.4.2? Call it 1.4.3 Clearly 1.4.1 worked, and clearly 1.4.2 is useless.

I idiotically allowed the useless firmware v1.4.2 to install and of course my cameras are now next to useless failing to switch between night & day at all. Does anyone know how to roll back to 1.4.1?...