FoldOut in a Group is overflowing.

[akeit0]

To solve this, increase padding or query with Foldout type.

helpBox.schedule.Execute(() =>
{
    foreach (var foldout in  helpBox.Query<Foldout>().Build())
    {
        if(foldout.parent == helpBox || foldout.parent.parent == helpBox)
            foldout.style.left = 12f;
    }
});