Argh!

My code hates me. I set up a new input file to test a new feature and it broke. No big surprise there, it's still a work in progress. I look up the line causing the error and can't see why it is behaving the way it is. I comment out most of the new feature and try the new file again. Still broken, but there error is in another place. Still can't see why. I'm getting the sneaking suspicion that I may have just uncovered a preexisting bug in my code with this new test. *sigh*