On either of the cases, I got a full list of my processes an aplications published (mega ignores the filter and just publish everthing on te repository). This is a general bug or how can a I filter the content?
It depends on how the website template is setup. It's not enough to take an existing website object and add a specific library in the object tab of the website object. If there are already other objects mentioned and propagate is set than it will publish much more than only the object you have added