Thanks Carkie. My other tabs are refreshing ok. Every post I’ve seen about this issue seems to talk about plugins.
I made so many changes it will take me ages to write them down, I will basically be back pretty much at the start.
Are there any other suggestions from anyone, before I go down the ‘refresh and lose everything’ route? Thanks very much.
I have only made simple changes like the background colour, font, adding a logo, changing the menu items, etc. Nothing to do with CSS or anything complicated.