Problem description: 
When i open a file in Libreoffice (every kind of file) for the first time and i push the "File" button the software stops and blocks for about 12 seconds and then restarts. During the same session if i try to push an other time the "File" button, it works prperly.

Steps to reproduce:
1. Open a file like .ods or .doc
2. Press the "File" button on the upper left corner of the window


Current behavior:
The button become dark gray for about 12 seconds and software get stuck. Then it works properly showing the relative drop-down menu.

Expected behavior:
Open immediatly the drop-down menu without stucking
              
Operating System: Windows 7
Version: 4.2.5.2 release