Problem: Trying to translate Store URLs from the WooCommerce -> WooCommerce Multilingual -> Store URLs tab does not work. No dialog is shown and there is a javascript error in the console: Uncaught ReferenceError: _ is not defined
Solution: This is due to a dependancy not being loaded (Underscore.js) and is fixed in the WCML v4.7.0-RC1 update, available from WPML.org -> Account -> Downloads -> Beta Channel