Problem: The client was trying to translate WooCommerce system emails into German and English. They followed the steps in our guide to translating WooCommerce.
However, with WooCommerce Multilingual enabled, all emails were sent in English only. Disabling WooCommerce Multilingual resulted in emails being sent in the correct language. Solution: This came down to a bug.
We released WPML String Translation 3.2.16, which is expected to address this issue. Please ensure that you have the latest versions of all relevant plugins and themes.
If this solution does not resolve the issue or seems outdated, check the related known issues and verify the version of the permanent fix. If problems persist, please open a new support ticket with us.