Description of problem:
Using Yum Extender on Fedora Core 20 LXDE 32-bit to install or update a second
(or later) item, the Processing pending actions popup window is blank or empty.
From previous usage, I know if I click the bottom right hand corner area, processing will proceed.

Version-Release number of selected component (if applicable):
3.0.13

How reproducible:
Always

Steps to Reproduce:
1.Start Yum Extender
2.Select one item to update or install
3.Process that item.
4.Select a second item to update or install
5.Try to process it.
6.When the 'Processing pending actions' popup window happens, it will be empty

Actual results:
Popup window is empty

Expected results:
List of software, and two button to click.

Additional info:
I believe this also happens on the 64-bit version and previous versions of 
yum extender.