[Resolved] String translations only works when Auto Register is enabled (2 hours)

Hi,

I'm struggling with a string translation problem. The translations are not visible on the website unless the auto register checkbox is checked (then it works for 2 hours).

I followed almost every forum topic available and tried the following things:

- Disabled all plug-ins
- Tried the published workaround (https://wpml.org/errata/string-translations-are-not-visible-on-the-site-after-a-string-has-been-translated/)
- Pre generated the MO files (https://wpml.org/forums/topic/strings-are-translated-only-when-auto-register-strings-for-translation-is-on/#post-11383577)

The live environment and staging environment do have the same server specs. The problem is present in both environments. The default language is dutch, but the translations don't work in English. You can see the staging site with the following url: hidden link.

Examples of strings that are not translated are:
- Hulp nodig?
- Voor een persoonlijk afscheid

We've added the strings in the code like: <?php echo __('Hulp nodig?','Wikkelgoed'); ?>

Thanks in advance.