Only work with posts manually published

Only work with posts manually published
When I use import plugin to create posts, this plugin does not work, I have to access all imported posts and click on update, if I do not, nothing happens.
It does not perform the action in the act of creation of the post, but in the action of click update post, or publish post, should serve for the majority of people, but there are a lot that uses import plugins with post scheduling.