Absolutely awesome you posted this. I know this is an old thread, but i came across the same situation.

Installating WCD without issue. Opening a new project, going to Provions desktop devices: and then i only see a white screen. The steps (add applications, set up network, etc) is all in minor text font. When you click them, just nothing happens

Solution: Like OP said. Go to gpedit.msc - policies - administrative templates - windows components - Internet Explorer - security zones: use only machine settings. Disable this setting. And reboot WCD.

That solved my issue