Hi, thank you for the update. And here are the answers:
1. Here is the test page we have created with the widget that we cannot add through XML: hidden link
2. This part might be resolved if I explain to you the next one
3. Footer: WPML->Translation Management->Filter by templates — The ones you see here: hidden link in green is translated/ The red ones do not need to be translated.
And the issue is not in translating them. The one that is already translated does not appear translated on the frontend. It alwasy shows English version on every language.