Ok can you send me a file called Autonauts_Data/output_log.txt please? You'll find it where you've installed the game.
7 years ago(+1)
Ok I've added this to the bug list but I might not be able to fix it in time for this week's release. In the mean time you could try installing the game using Itch.io official app. You can find it on the front page of Itch and it works just like Steam and keeps your game up to date with the latest release. Installing this way might fix your saving problem.