Last week all of the effects presets that I saved in the Effects Favorites panel inexplicably disappeared. I updated to the current Audition Build 18.104.22.168, but it did not restore any effects. I found another post on here that suggested copying the EffectPresets.xml file from the 11.0 folder and pasting/overwriting the file in the 12.0 folder, but that didn't help. Any suggestions to help me get my presets back? Also, Clip-->Fade In and Out became grayed out and stopped working at the same time that my Effects Favorites disappeared. A related issue? Please help!
However you look at this, something is happening to your Properties folder - it has to be, because that's where all the information about everything to do with effects is stored. There are several things that can affect it; even things like an over-protective OS restoring settings can screw this up. The obvious thing though is to be logged onto your machine as a different user - even worse, without Administrator privileges. That has caught out a few before, and it's all down to what happens with Properties. Chances are though that if you can't find anything you did previously, they are gone forever - unless you saved them under a different user-name.
I just had this happen to me when I changed workspaces. When I changed back to my regular workspace, all my favorites were gone. Just as I was going to start rebuilding them I noticed that the search bar at the top of the window had characters in it. I deleted them and instantly all my favorites were back.