Have you sent a ticket in about this?
How to create a support ticket:
For support where examining saves is required, names of ships, planets and starbases, etc, are extremely helpful in our attempts to reproduce the issue.
Link to forums for explanation:
https://forums.galciv3.com/452855/page/1/
Link to support tool:
http://sd.stardock.com/Support/supportToolTest/SDSupportTool.exe
Dmp file location:
"C:\ProgramData\Stardock\Galactic Civilizations III"