We've customized all multishipping checkout steps (as part of our customer requirements) in our custom theme & I've found our custom layout ...Magento_Multishipping/layout/multishipping_checkout_billing.xml is not being loaded

Upgrade works perfectly, thanks

One question… we’ve customized all multishipping checkout steps (as part of our customer requirements) in our custom theme & I’ve found our custom layout …Magento_Multishipping/layout/multishipping_checkout_billing.xml is not being loaded after your extension upgrade

Your file vendor/mage2pro/core/Checkout/view/frontend/layout/multishipping_checkout_billing.xml is being loaded instead of ours

How could we manage to load both files?

How to get my generic Magento 2 support?