Pro tools stems script error

Hi!

Ive been using this amazing script to solo and bounce out track stems in PT that i grabbed from another post, i believe it was made by @Tristan_Hoogland and @Kitch !

It recently starting hanging on line 54, and im a bit out of my depth trying to figure out whats happening (this the point in the script when its trying to select the bounce destination folder).

The exact error is "Command Error: Export selected as stems Mar4th Copy [user:ckchpxcak0001rf109o4dvmrm:ckot6dfww0000zb10wm1j2ssr]:
ClickButtonAction requires UIElement (Export selected as stems Mar4th Copy: Line 54)"

It seems like its not able to find the "open" button to select the bounce destination? is that right? Anyone?

Thanks in advance!

/script
var sessionPath = sf.ui.proTools.mainWindow.invalidate().sessionPath;
var sessionDirectory = sessionPath.split('/').slice(0, -1).join('/');
var sessionName = sessionPath.split('/').slice(-1)[0].split('.').slice(0, -1).join('.');

function makeNewDirectory({ templatePath }) {
    const parentDirectory = templatePath.split('/').slice(0, -1).join('/');
    const directoryTemplateName = templatePath.split('/').slice(-1)[0];

    for (let i = 1; ; i++) {
        let directoryName = `${directoryTemplateName}${i}`;
        let directoryPath = parentDirectory + '/' + directoryName;

        if (!sf.file.directoryExists({ path: directoryPath }).exists) {
            sf.file.directoryCreate({ path: directoryPath });
            return directoryPath;
        }
    }
}

    function bounceStem(stemName, directory, versionNumber, firstRun) {
    sf.ui.proTools.menuClick({
        menuPath: ["File", "Bounce Mix..."],
    });

    let bounceDlg = sf.ui.proTools.dialogWaitForManual({
        dialogTitle: 'Bounce Mix'
    }).dialog;

    sf.ui.proTools.windows.whoseTitle.is('Bounce Mix').waitFor();

    let stemFolder = directory;

    if (firstRun === true) {
        sf.ui.proTools.windows.whoseTitle.is('Bounce Mix').first.groups.whoseTitle.is('Location').first.radioButtons.whoseTitle.is('Directory:').first.elementClick();

        sf.ui.proTools.windows.whoseTitle.is('Bounce Mix').first.groups.whoseTitle.is('Location').first.buttons.whoseTitle.is('Choose...').first.elementClick();

        const openWin = sf.ui.proTools.windows.whoseTitle.is('Open').first;

        openWin.elementWaitFor();

        sf.keyboard.press({ keys: "slash" });

        openWin.sheets.first.comboBoxes.whoseValue.is('/').first.elementWaitFor();

        openWin.sheets.first.comboBoxes.first.elementSetTextFieldWithAreaValue({
            value: stemFolder,
        });

        openWin.sheets.first.buttons.whoseTitle.is('Go').first.elementClick();

        openWin.sheets.first.comboBoxes.first.elementWaitFor({ waitType: 'Disappear' });

        openWin.getElement('AXDefaultButton').elementClick();

        openWin.elementWaitFor({ waitType: 'Disappear' });
    }

        function maximiseBounceWindow() {
    const bounceWin = sf.ui.proTools.windows.whoseTitle.is('Bounce Mix').first;
    bounceWin.groups.forEach(g => {
        if (g.frame.h === 22) {
            if (g.buttons.whoseTitle.is('Collapser').first.exists) {
                g.buttons.whoseTitle.is('Collapser').first.elementClick();
            }
        }
    })
}

    //Maximise 'Bounce Mix' Window
    maximiseBounceWindow();

    const bounceCheckboxes = sf.ui.proTools.windows.whoseTitle.is('Bounce Mix').first.checkBoxes;

    sf.ui.proTools.windows.whoseTitle.is('Bounce Mix').first.groups.whoseTitle.is('Audio').first.checkBoxes.whoseTitle.is('Add MP3').first.checkboxSet({
        targetValue: "Disable",
    });

    let popupButtons = bounceDlg.getElements("AXChildren").filter(function (e) { return e.fullRole == "AXPopUpButton" }).slice(-4);

    let fileTypeBtn = popupButtons[0];
    let formatBtn = popupButtons[1];
    let bitDepthBtn = popupButtons[2];
    let sampleRateBtn = popupButtons[3];

    //File Name
    sf.ui.proTools.windows.whoseTitle.is('Bounce Mix').first.textFields.whoseTitle.is('').first.elementSetTextFieldWithAreaValue({
        value: stemName + versionNumber,
    });

    sf.ui.proTools.windows.whoseTitle.is('Bounce Mix').first.groups.whoseTitle.is('Location').first.checkBoxes.whoseTitle.is('Import After Bounce').first.checkboxSet({
        targetValue: "Disable",
    });

    //Offline Bounce
    bounceCheckboxes.whoseTitle.is('Offline').first.checkboxSet({
        targetValue: 'Enable',
    });

    sf.wait({ intervalMs: 200 });

    sf.ui.proTools.windows.whoseTitle.is('Bounce Mix').first.buttons.whoseTitle.is('Bounce').first.elementClick();

    //Wait for bounce to finish (Wait for bounce dialog to appear, then to disappear)
    sf.ui.proTools.confirmationDialog.elementWaitFor({ timeout: 100000 });
    sf.ui.proTools.confirmationDialog.elementWaitFor({ waitType: 'Disappear', timeout: -1 }); //-1 is endless timeout (cancel by Ctrl+Shift+Esc)

    while (sf.ui.frontmostApp.title.value !== "Pro Tools") {
        sf.wait({ intervalMs: 500 });
    }
}

function soloModeXOr() {
    sf.ui.proTools.menuClick({
        menuPath: ["Options", "Solo Mode", "X-OR (Cancels Previous Solo)"],
        targetValue: "Enable",
    });
}

function main() {
    sf.ui.proTools.appActivateMainWindow();
    sf.ui.proTools.mainWindow.invalidate();

    const newDirectory = makeNewDirectory({
        templatePath: `${sessionDirectory}/Bounced Files/${sessionName}_JBMixStems V`
    });

    const versionNumber = '_JBMixStem_' + newDirectory.split(" ").slice(-1);

    sf.ui.proTools.groupsEnsureGroupListIsVisible();

    var groupListPopup = sf.ui.proTools.groupsOpenListPopupMenu().popupMenu;
    groupListPopup.menuClickPopupMenu({
    menuPath: ["Suspend All Groups"],
    targetValue: 'Enable'
});

sf.ui.proTools.appActivateMainWindow();

    soloModeXOr();

    let firstLoop = true;

    sf.ui.proTools.selectedTracks.trackHeaders.slice().map(track => {

        track.trackSetSolo({
            targetValue: "Enable",
        });

        let stemName = track.title.value.split(" - ")[0];

        bounceStem(stemName, newDirectory, versionNumber, firstLoop);

        firstLoop = false;
    });

    sf.system.exec({ commandLine: `open "${newDirectory}"` });
}

main();