Viewports not updating

Hi
a cant see the wood for the trees problem possibly…
I think I’ve inadvertently changed a setting/preference but now only the active viewport updates in 2-up or 3 up view in BFX, action or effects…so you have to tap in the scopees view to see changes.
I feel sure I’ve seen this before and know its related to the green, yellow and red indicators next to viewport view title…see this image:

If I switch user, its ok, so last resort is new user, but before that, anyone got any ideas?

tia
Des

Batch>View>Multiview Layout>Update>pop up should say “all viewports.”

I flipped those settings and all appears to be working. I don’t remember changing anything in there though. Weird…
Thanks!
D