Issues With Time Remapping of Layers

Hello,

Thanks to helpful people on the community forums here I've been able to automate a lot of a project I'm working on, but there is one sticking point.

 I wanted to sync an audio layer so that it begins to play at the start of movement of a mask path with the following expression:

t = thisComp.layer("Mask Movement").mask("Mask 1").maskPath.key(1).time;
valueAtTime(time - t)

The issue I'm having is the audio layer is beginning too late -- far after the initial movement of my mask path. Here is a picture of my comp with markers to show the difference in time :

Two things of note. The first is there is an expression on the mask path I'm attempting to sync the audio to that links it to a different layer:

target = thisComp.layer("Target Layer");
targetMask = target.mask("Particular Path").maskPath;
targetMask

The second is all of my layers (save for "Mask Movement" which is linked to "Target Layer" are linked to the outpoint of the layer called "audio 1").

Here is a picture of the composition after I've scrolled down to reveal the section that the mask path is linked to, in case it matters:

Is there any way I can adjust my expression on the audio layer's  to account for this?

Thank you.