I am running the latest version (see first screen snapshot below) and I have run into an interesting bug.  In the upper right-hand corner of the second screen snapshot below, you can see that I have selected the advisors list.  The bug is that, if you double-click on the third item in the advisors list (The citizens of Derda IV are unhappy) the screen changes to the third screen snapshot below and there is no way that I have found to get out of it.  The only thing I can do is close the program from the task bar.

Here is a link to the save file in Dropbox:  https://www.dropbox.com/s/h6s5it42g30g5ov/SaveToDemoBug.GC4Sav?dl=0

All you have to do to recreate the bug is load the file and double-click on the third item in the Advisors list.

Note: Double-clicking on either of the first 2 items in the Advisors list does NOT cause the problem.