ID 442294 - [Client Hang] Contact Sheet: Unable to generate when Client is launched from a network location on Windows

Problem summary
Flix Client is unable to generate a Contact Sheet if launched from a Network location on Windows.

Customer reported version
Flix 6.3.3

Customer reported platform
Windows 10

Steps to reproduce

1) Download and unzip the Flix Client for Windows to a network drive.

2) Launch Flix.exe from the network location.

3) Go to a short Sequence Revision (number of panels is irrelevant, but shorter Sequences presume shorter PDF generation time), and attempt to export a Contact Sheet for all panels to a local location. The Client will hang. 

4) Close the Export window by clicking on the x on the top right of the pane, then reload the Client.

5) Try exporting a Contact Sheet again, for the same Sequence Revision, and you will get the following error:

Clicking on OK will close the Client.

Expected behaviour
Contact Sheet should be outputted.

Actual behaviour
Contact Sheet does not get generated, the Client hangs on the first attempt, and crashes on the second.

Workaround
Run Flix locally rather than from a network location.

Reproduced by support

This bug has been reproduced in:
6.3.3 - Windows 10 Client