Body Text of Customer Completed Order email

Hi Ben – all emails are working well, except for the Customer Completed Order email. Changing the Body Text doesn’t reflect in the preview nor the actual email that is sent.

In my case the site is not in English, and I use Loco Translate to override strings here and there. Previously I overrode the entire email sent to the customer, but now even that is not working (and Kadence seems to override it anyway, for other email body texts).

Any tips as to how I can go about troubleshooting? I thought it might start working with the latest version of woocommerce but no luck.