[Решено] WPML Export and Import

Background of the issue:
I am trying to import two files into WPML, one in English and one in German, following the instructions from the WPML documentation. The site I am working on is скрытая ссылка.

Symptoms:
After importing the files, all 258 posts are in English. The Import/Export process indicated that 129 posts were treated, which is correct for one language, but the backend still shows 258 posts in English and none in German.

Questions:
Why are all 258 posts showing in English after the import?
Why are there no posts in German despite following the import instructions?