WooCommerce login page template not being applied to manual order payment links

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[Please describe this bug in as much detail as possible so we can replicate & debug this bug]
I’ve got a WooCommerce store built in Bricks, togdrop.com, runs really well. We have a custom login page for WooCommerce, custom account templates, cart pages, checkout pages, payment page template and so on… all the stuff we need.

When customers interact with the store themselves, add to cart, checkout, pay…everything is great.

When we create a MANUAL ORDER inside of WooCommerce, link a customer, send them the direct payment link (eg Checkout - TogDrop Solutions ) you can see that the custom WooCommerce login page template isn’t being applied here.

It is applied fine if you go to the My Account page when not logged in… eg My account - TogDrop Solutions

How do we get the custom login template to work also for the manual woocommerce order payments please?

Thanks in advance
Lee