nick, that suggests that the map has an error in it's structure. does the map load into galaxy forge 3?
if not then edit the map in notepad and MAKE SURE that EACH value(number) has a LEADING ' '(space). I had once modified a map and accedentally removed a space before a value in a line and it crashed sins.
SINS is EXTREMELY DEMANDING in it's file structures ie every command(instruction) NEEDS to be THE EXACT CASE AND spelling, THERE NEEDS to be a space BETWEEN the instruction and the value for the instruction or it crashes
hope this helps
and if it does not solve the problem you could email the offending map to me at harpo99999 at hotmail.com and I will do my best to fix the map
harpo