Why are some checkout translations not working in my German store?

[enqep]

Hi,

I translated the whole store with Translate & Adapt into German and everything works fine except two things:

1. Product names in the checkout are still in English (they show in German on the site)
2. All strings that have been edited via original language file (e.g. custom Shipping method notice text) are being ignored, even though they're translated in the app.

Domain is correct, language is correct - all other fields in the checkout are in German. Only product names and all strings that were previously edited in English, are now displaying in English.

Any ideas, please?

Many thanks.