Open all nested folders

I'm attempting to write a script that will open a selected parent folder and all children folders at once. Here's what I've got, but something isn't working....

function getTrackDepth(track) {
return Math.floor((track.titleButton.frame.x - track.frame.x) / 15);
}

function getTrackFolderStructure() {
var root = { children: [] };
var stack = [];
stack[0] = root;
var flatList = sf.ui.proTools.visibleTrackHeaders.map(t => ({ track: t, depth: getTrackDepth(t) }));
for (var i = 0; i < flatList.length; i++) {
var flatItem = flatList[i];
var node = {
name: flatItem.track.normalizedTrackName,
type: flatItem.track.title.value.match(/ - ([^-]+)$/)[1].trim().replace(/track$/i, '').trim().toLowerCase(),
track: flatItem.track,
children: []
};
stack[flatItem.depth] = node;
stack[flatItem.depth - 1].children.push(node);
}
return root;
}

function findNearestParentFolder(root, trackName) {
var folderStack = [];
function walk(node) {
var isFolder = node.type && node.type.indexOf('folder') >= 0;
if (isFolder) {
folderStack.push(node);
}
if (node.name === trackName) {
return folderStack.slice(-1)[0];
}
for (var i = 0; i < node.children.length; i++) {
var res = walk(node.children[i]);
if (res) return res;
}
if (isFolder) {
folderStack.pop();
}
}
return walk(root);
}

function expandAllFoldersInNode(node) {
if (node.type.includes('folder')) {
node.track.folderTrackSetOpen({ targetValue: "Enable" });
for (var i = 0; i < node.children.length; i++) {
expandAllFoldersInNode(node.children[i]);
}
}
}

function expandSelectedParentFolder() {
// Bring Pro Tools to the front
sf.ui.proTools.appActivate();

// Wait for Pro Tools to be active
setTimeout(() => {
    // Get the track folder structure
    var root = getTrackFolderStructure();

    // Get the selected track
    var selectedTrack = sf.ui.proTools.selectedTrackHeaders[0];
    if (!selectedTrack) {
        console.error("No track is selected.");
        return;
    }

    // Find the nearest parent folder of the selected track
    var nearestFolder = findNearestParentFolder(root, selectedTrack.normalizedTrackName);
    if (!nearestFolder) {
        console.error("No parent folder found.");
        return;
    }

    // Expand the parent folder and all nested children folders
    expandAllFoldersInNode(nearestFolder);
}, 2000);

}

expandSelectedParentFolder();

Thanks for the help!