LinuxMusicians

I have a basically finished mix that I'm trying to export and when I do I find that there is a weird peak that only occurs at one place in the song. This causes problems when it tries to normalize. I can't quite put my finger on what is causing it. There are no pops or non-zero crossing or anything like that. As far as I can tell it's just one place where the sounds come together and cause a peak at some frequency. I'm wondering if maybe there is a phase issue or something I could EQ. Any advice is appreciated.