(0.8.2) Modding MAV Problems

I'm making a mod for SCP:CB (I'm not saying what, it's a surprise :D), and I added the "Bug Fixes for Events" Source Code and Exe. However, when I switched 2 of the music files (The Dread and MenuAmbience), I now get MAV'd at 79%. If you'd like the folder for fixing manually, PM me. I'd be happy to provide more info, and I'd GREATLY appreciate it if you fix it. Thank you for reading.