Resolved
Reported for: WooCommerce Multilingual & Multicurrency 3.6.5.1
Resolved in: WPML 3.2.3
Overview of the issue
When a different language than English is used for the admin language, some WooCommerce settings strings show up in the current language instead of English (default)
Workaround
The problem goes away when using WPML 3.2.3 (WPML String Translation 2.2.3)