How can I make my form adopt and keep a currency setting?

I have set my currency in my order form to GBP and it displays in the editor.

However when I embed the form it reverts to $ (not sure which currency - I assume it's USD).

When I exit the form and open to edit, it has reverted to $.

Hello, 

Can you ensure that you do not have the form being edited on a different tab? This is I was not able to replicate the issue upon checking. It would also be great if you can share with us a link where the form is embedded.

Thanks.