Just in this morning I updated pt_BR translation in Weblate (from 85% went 100%), and while translating I proposed #459. Now, after having that MR merged, my translations went back to 85%, and the untranslated strings show the "Has been translated" check (means Weblate found a previous translation in its Translation Memory).

I'd like to suggest to review the configurations for the AppStream project in Weblate.