Sorry for “bumping” the topic.
I am not getting any error, if I enter /uk/%postname%/ @ the blog with slug /en/ it does not provide https://example.com/en/uk/Hello-world but just https://example.com/en/Hello-world. Somehow the /uk/ gets ignored.
It is obviously for migrating to WP, but I guess nothing rests but redirecting the old links or assigning a categorie (uk) to all posts.
I checked, because I only use pages I cannot assign categories. Any other workarounds? Otherwise I’ll have to redirect everything.
Setting a custom url for every post doesn’t work either, the / gets ignored, https://example.com/en/uk/Hello-world becomes https://example.com/en/ukHello-word.