XSquawkBox 1.3.3 beta 2 has been released and is available on the download page.
In addition to the bug fixes in beta 1, this beta adds a bug fix for the broken popup lists and for a bug in the connection dialog to do with airline search.
This beta is highly recommended for all users running X-Plane 11 as it fixes a UI bug that was masquerading as many other bugs.
This beta expires on 20 May 2017.