With the 1.03 Patch, new or previously downloaded maps you add to the Galaxy Folder will not work (will not show up in the map menu).
Here is how you fix it:
Open the map (e.g., Triangle.galaxy ) in a text editor like Notepad.
Change the VersionNumber from 0 to 1
For example:
TXT
versionNumber 0 <<<--- Change to a 1
So, it looks like this:
TXT
versionNumber 1