FYI, in settings/regional settings, bank holidays, it shows Português - Brasil, where the correct imho is just Brazil, since it lists the country not the language. Didnt find where to fix this in translation. Pls change to just Brazil.
Also there are others that look strange, such as French, instead of France, Hungarian instead of HUngary, where others are correct such as Switzerland, Germany and United Kingdom. Id recommend keeping a standard just the country name not language, which imho is more correct.
Also in your demo, theres a bank holiday called bn_BD which looks like some error.