Audio Filters Not Loading - CS6 Mac

Question

I've encountered a strange problem that I hadn't seen in previous versions of PPro.
I had applied a number of audio filters in a recent project. While in the process of doing this, the program crashed. When I re-opened the project, I received the message:
"Audio Filter missing:  1094998321 Dynamics1
Audio Filter missing:  1095915057 Reverb1"
and so on, for any audio filter applied.
Clicked "OK" and the project continued opening, however the effects panel for all audio clips with filters applied now read "Offline (filter unavailable)"
Strange. Deleted then reapplied the filter. Played back correctly. Closed the program, reopened, and the filter is once again "offline".
I tried a few workarounds:
1. "replace and render" the audio clips. This froze the program and I had to force quit
2. exporting clips to Audition. This also locked up the program
3. apply filters then render final audio file in Adobe Encoder. Audio file rendered, but filters weren't applied.
Very strange and frustrating. Any ideas on the cause of this or possible solutions?
2008 Mac Pro 3,1 (2 x Xeon 2.8 GHz processors)
16 GB RAM
GTX 285 video card
Project files and media cache on separate drive from program

Answer 1

I have experienced this problem several times with Premiere Pro CS6 and PluralEyes 3.0 for Windows.
The problem is simple:  when you apply an audio effect to a track that was synced by PluralEyes, Premiere Pro gets confused about whether the track is mono or stereo.  Premiere Pro applies the effect properly, but when it saves this effect in its project file, it writes the incorrect filter name.
Then when you restart Premiere Pro, it reads the project file, extracts the incorrect filter name, and complains about the "missing" filter.
The solution is simple:  just edit the Premiere Pro project file (which is in XML format) to contain the correct filter name.  For example, when I added the Lowpass and Bass effects to a PluralEyes audio track, Premiere Pro wrote these to the project file:
<FilterMatchName>Internal Lowpass Mono</FilterMatchName>
<FilterMatchName>Internal Bass Mono</FilterMatchName>
When I changed those from "Mono" to Stereo with a text editor, then reloaded Premiere Pro, it solved my problem:
<FilterMatchName>Internal Lowpass Stereo</FilterMatchName>
<FilterMatchName>Internal Bass Stereo</FilterMatchName>
The trick, of course, was in discovering the correct names for these effects.  To do that, I:
Created a new Premiere Pro CS6 project
Imported the audio track in question
Dropped it into a sequence
Applied the audio effect(s) in question
Saved the project
Opened the Premiere Pro project file (which ends in ".prproj") in a text editor
Searched for the effect name (e.g., 'Lowpass" or "Bass")
The filter names are not always this predictible; for example, when Premiere Pro wrote "<FilterMatchName>1095782705 EQ1</FilterMatchName>", it really meant "<FilterMatchName>1095782706 EQ2</FilterMatchName>".  And when it wrote "<FilterMatchName>1094998321 Dynamics1</FilterMatchName>", it really meant "<FilterMatchName>1094998322 Dynamics2</FilterMatchName>".