Hi Ken –
Not sure if this is part of your issue, but Audition does accumulate a lot of excess WAVs, some very large, if you do multiple takes that you wind up not using in your mix. Unfortunately neither AA2 nor AA3 provides a clean way of removing this obsolete audio from your hard drive. (Using File|Close Unused Media just removes the files from the Files list, it does not delete or relocate the actual files.)
There is a good shareware utility that handles this issue, no muss, no fuss. It’s specific to Audition and AA3 support was just added (I haven’t tried the new version but have used the old AA2 version almost daily for 18 mos or so). You can install it in AA’s Favorites menu. It allows you to automatically delete unreferenced WAVs or just move them to a secondary location.
The d/l is:
https://www.edwardhamlin.com/afc_download.shtml
Like I said, I can’t really tell from your post whether this is part of what’s frustrating you, but it’s a known annoyance so perhaps at least this helps you see what AA’s up to.
HTH,
Eli