I’ve just updated the VI-Suite to version 0.4.2. This version contains various bug fixes and an update to this version is recommended by downloading the complete zip file from http://arts.brighton.ac.uk/projects/vi-suite/downloads for your operating system.
One user-facing change is that if specifying a custom EPW weather file in the VI-Suite settings the Manual/EPW menu needs to be toggled in the location node to update the weather file list.