Project properties: "Font Awesome" setting and"Long description" and "author" strings are not saved.

When first creating a project I set the "Font Awesome" check to version 5, and set values for the "Long description" and "Author" strings.  If I enter the Project Properties just after that, the values are not shown.

If I set the values again and save the project, they shown as long as I don't close the project. 

When I close and reopen the project, sometimes the "Author" lost it's value, and the "Long description" lost it's value always.