The framework options in project settings has some issues. It has been reported before, but it has not been fixed.
To change the jQuery version on your page - index.php, don’t go into code view. Just select the right framework from the app properties right panel. That works reliably.
As for creating a new page and the framework settings, this is what works for me:
- Go to framework settings and delete everything.
- Add jquery, bootstrap, fontawesome, app connect - in this order and save.
- Now try to create a new page and it should load correct frameworks.