Unter den Kreaturen befindet sich eine, die sich "Engineer Ranger" schimpft. Wenn ich die ausknocke ist das Spiel gelaufen.
Did you use a language (registry) hack? If so, this is causing the bug. The engineer ranger label should be translated in your version. You are seeing the UUID of that particular enemy, and not the German (or even English) name.
We cannot reproduce this here without breaking into the registry or files. If you are experiencing this as an end-user, we would like to receive a savegame (send it to info at larian dot com and mention my name) and we can only recommend to backup your savegames, uninstall all components of Divinity II and re-install.
