I am having trouble with saving my game, when I click the save button the screen goes a little bit gray and does nothing till I hit Esc and go back to the menu.
Ok here's a link to a test level https://www.dropbox.com/s/0nwb8e0rli83krp/test.txt?dl=0
If you download that to somewhere safe like on your desktop, then run the game, load this new level. Now when you save it will hopefully work.