With the release of Chrome V69, users are now forced to switch Adobe Flash Player on each time they launch the browser.
A non-Flash version of the Intelligent Flatplan is scheduled for release in January 2019. Until then, Chrome users will need to manually Allow Flash by following the instructions below. Although annoying, this task only takes a few seconds to complete.
If users are experiencing problems with Flash Player in other browsers, instructions for Installing and Enabling Flash Player, and Allowing the Intelligent Flatplan domain can be found here: