Wordpress pages not working (only works with admin login) (Nginx server)

I'm trying to fix a problem for 4 hours and can't figure why this is happening.

When I create a page and visit /nameofthepage with admin login, it works. When I try to access the same link on another computer, shows 404 error.

The author page and blog post's are working everywhere.

I'm using Nginx and i already setup all permalinks right and tried other configs...but it doesnt solve my problem.

I think this was already working....but i recently updated to a new version of wordpress. Perhaps this is the problem?

Thank you guys :)