If you have problems getting Glade to run on Linux, it may be because certain dependencies for the Qt plugins are not being met. For example libfontconfig.
One way of debugging this is to set:
in your shell before launching Glade. It will print out a mass of info on the plugins its trying to load, and any errors found.
btw Glade runs quite well on Windows 10 using a bash shell – the latest win10 version supports Ubuntu 16.04. You need an X server like Xming running on Windows for the graphics to work.