I have the same problem all the time. I thought version 1.03 fixed it, but it re-appeared.
I would like to point out that my installation is on my SSD, but the save file location is on an HDD, which is where my personal computer folders are all located (and where the game defaulted to save the game save files). I like to save often, and not sure this affects anything, just wanted to point out that one possible oddity in the installation. I don't use Galaxy, used the GOG pre-install files and patches.