Multi Currency for WooCommerce – CUSTOM SYMBOL is not working

Hi,
I’m testing your Multi Currency for WooCommerce.
I’m using the free version to test, will purchase when it’s running correctly.

The CUSTOM SYMBOL is not working.
I’ve followed your instructions at the bottom of the screen and entered ‘US #PRICE# $’ into the Custom Symbol field.

This is not working correctly in the WooCommerce Checkout (it is fine in the cart).

Please advise???

Please see URLs and attachments.

https://wordpress-1010757-3656124.cloudwaysapps.com/iso-9001/project-plan.htm

Price displaying correctly on sales page:
https://wordpress-1010757-3656124.cloudwaysapps.com/iso-9001/project-plan.htm

Price displaying correctly on sales cart:
https://wordpress-1010757-3656124.cloudwaysapps.com/cart.htm

Price NOT correct on the checkout:
https://wordpress-1010757-3656124.cloudwaysapps.com/checkout.htm

Kind regards,
Justin