Lost some Audio on the multitrack of Adobe Audition 3

I know that this discussion pertains to the Audition problems past CS5.5, but I need major help with something that happened in Adobe Audition 3.  I have a file that I may of resaved a file or something and then it started showing up almost as missing.  If you look closely at the picture you can see some of the audio files have red lines, but then when I click on files with the red lines you can still go into the edit mode of the audio file.  This is the second time it happened to me.  This is a problem that happened to me only this week and I didn't have it before.  I loaded up the same project that I had on my other external hard drive where the problems didn't exist when I saved them, but then the same problems came up on my backup drive!  I loaded my Adobe Audition 3 disk in and had it repair the program and that still didn't work.  I never uninstalled Adobe Audition 3.  Does anyone think I should uninstall AA3 and reinstall it?  I thought that maybe having Adobe Audition CC would cure this problem.  I downloaded it and I saved the multitracks as an xxl file and the problem still exists on Adobe Audition CC.  Is anyone familar with this bizzare problem?  What makes the problem more bizzare is the fact that the problem also occured on the backup drive and I am 100% positive that the problem didn't exist when I put it on my backup drive.  Can anyone help me with this problem?