Jakka
Axel I deleted the old one "Vervolg" where pin is. Your new tag "name:landcode" is only when there is a translation. In this case no translation, so of any use.
Votre nouvelle tag "nom: countrycode=Vervolg" est seulement quand il ya une traduction. Dans ce cas ci, aucune traduction et n'aporte rien.
help mapsme:The issue can happen only if you tap add language while editing a place, scroll list of languages to the bottom and select "Native for each country", then you should enter the name, leave other name fields as is and tap save