After editing audio in Audition I export the file as a WAV and import to the Animate Library but the audio displays as a flat line, indicating the no sound/audio exists. When I open the wav file outside of Animate it works fine.
I have been able to get around this problem by converting the file using Format Factory but still converting to WAV.
I believe the issue resides in Animate. Hoping Adobe will look into this issue so I no longer have to do the extra step of converting.
You've said how it displays in Animate, but you haven't said what happens when you actually try to run the page, or click the Test button in the WAV file's properties.
That being said, remember that WAV is just a container format, not a codec. You should be saving your audio in it as uncompressed PCM.
Also for whatever reason Flash/Animate hates Audition's markers so when you save a file out of Audition uncheck the "Save Markers and Metadata" option there in the Save window. Not doing this will flatline your waveform every time. Or it does for me at least. Aiffs too.