Publishing to be-tarask was broken because of the renaming of the domain, but now it works.
However, now there is another odd bug:
- Translate "Мацэ" from be to be-tarask
- Click the first paragraph
It has a link to "Italy" (Італіі). When you click the link, two correct link cards are shown, with Italy in be and be-tarask. However, the link looks gray (unadapted) in the translation column, and when you publish the article, it is not there.
Could be a Wikidata bug (not sure, didn't debug carefully).