I recently tried to compile the maps after updating my code and recompiling everything.
When I try and run the compile_maps.bat from a shortcut, I get a strange message "work trought ufo2map_args", and "Press any key to continue". When I press the key the the cmd window closes. I tried running it with no arguments, that gets a different set of displayed text and then the returns to the command prompt.
There was a change on May 3rd that reworked the entire structure of the bat and I think that is what broke it.
Running Windows XP using the latest from the main trunk and Codeblocks.