Default setting not saved when creating unpublished node

I put the default value for the content type to
[] published
[x] Access restricted for non-premium users

So, new nodes are not published at first. When you create a new node, the checkbox remains checked, but when you save the node and are ready to publish it, the checkbox has gone.

This way, nodes that should be restricted, are not restricted unless the checkbox is checked once again when publishing. In my case, this option is not visible to the editor, so it is not even possible to check it (and it should be this way!)

Any clues why this happens?