Steam "Running First Time Setup"

I noticed that every time I ran Galactic Civilizations III after the Intrigue update, I would get, on Steam, one of those "running first time installer" messages, but then it would open a box for me to direct the program to where the Microsoft Visual C++ 2015 x64 Minimum Runtime - 14.0.23918 disk was located.  I have the most recent version of Visual C++, so how do I get this message to go away?  I cannot seem to find the Visual C++ file that the game is asking for.  Is this related to opening with the Stardock launcher?  Thanks.