Thread:Help talk:Extension:Translate/Update untranslatable content in translated pages/reply (2)

Thank you for that hint. At Special:PageTranslation I find those pages under "Broken pages": "Older versions of these pages are marked for translation, but the latest versions cannot be marked for translation." That's news to me!

When I remove a page there with "Remove from translation" and look into the source code, everything seems normal, the tags are there. The "mark for translation link" won't show up, though, so I cannot mark it for translation again. Here is the code from the page after removing from translation (The languages bar is included via template). Why are the pages invalid after only deleting a single non-translatable content line? And how can I make this work?