As a test, turn on the view for Track Keyframes for the Audio Track that you are adjusting. Do you see the Keyframes that you just added from Write, or are they not there?
I also assume that you are on CS4. Is that correct?
Huh... for some reason that worked.THANKS I didn't have to do this before tho.... Thanks you!
Good news is that it worked!
As for why the Track Keyframes, generated via Audio Mixer did not "take" initially, I have no idea. They should, unless one has Bypassed the Effects. Take a look at the drop-down when you Rt-click on the Audio and check that the Track is Enabled, and that Effects are Enabled. Different versions changed the exact syntax and also maybe the exact location of these, and all I can look at is how it was done in PrPro 2.0 - probably of no use to you. In CS4, IIRC, one can choose to Bypass Effects.
Good luck, and glad that the Track Keyframes View helped,