Here a hint how to get glade 'Linux 64 bit build for Ubuntu (tested on Ubuntu 12.04) version 4.4.28' running on Kubuntu 14.04:
When installing the download package you will face to an error message:
Cannot mix incompatible Qt library (version 0x40806) with this library (version 0x40805)
You can overcome this by two additional settings:
1. Add to your startup script:
2. Put into the glade installation directory a file
with the following contents:
Plugins = '.'
Then glade is starting up again correctly.
Attached my startup script as reference.