can you try to place the single-team.php and single-post.php inside the directory below
joyn-child/swift-framework/layout/
That’s because the layout it’s loaded from that directory.
https://www.dropbox.com/s/0ixhk19we6srpab/Screenshot%202016-05-24%2000.52.25.png?dl=0
Guess this solution can work it’s being used the get_template_part function.
let me know.
Regarding the changes in sf-portolio-details.php it’s just necessary to copy the function sf_portfolio_item_details() to the functions.php of the child theme.
-Rui