When Non-Ajax is enabled, there seems to be some issues with the course navigation on the right side, and the progress bar.
First, the progress bar auto increments, even if the user does not select "Mark Unit Complete."
Second, the navigation bar doesn't update accordingly after clicking on a Unit. The unit page loads the correct page, but the navigation bar on the right does not correctly switch to the current unit.
See the attached video. This is on a fresh install of WPLMS with all plugins up to date.
https://youtu.be/cbWTq0I1pgM