Layout Icon is greyed out on Sketchup

Using 2023 version of Sketchup Pro The Layout is ‘greyed out’ both on tool bar and drop down.

I have checked it’s the same account/version/ logged out and in again.
Checked it’s a .skp file being saved too.

I did have a 22 trial version but that isn’t being used.

Anyone know what to do as spent all morning looking at forums but nothing.

Ok I’ve just worked it out.
I downloaded it all over again from Trimble and replaced the original and it works! Phew.