Well, using Umbraco 4.6.1 here, and when I change the property of a Node, it shows up the first time, but than after changing it again, it doesn't change on the front end again. I can only change it once and it will show. I don't understand what I'm doing wrong here.

So, I have a .cs file in the AppCode directory structure, and have controls using the function in the .cs files... like so:

public static Content GetCached (Node aNode) 
{
    Content theContent = new Content();

    try
    {
        string theCacheKey = "Content:" + aNode.Id;

        if (System.Web.Hosting.HostingEnvironment.Cache[theCacheKey] == null)
        {

            lock (_Lock)
            {
                if (System.Web.Hosting.HostingEnvironment.Cache[theCacheKey] == null)
                {

                    theContent = Content.Parse(aNode);                            
                    System.Web.Hosting.HostingEnvironment.Cache.Insert(theCacheKey, theContent); 
                    UmbracoHelper.AddCacheKey(theCacheKey);
                }
            }
        }

        theContent = (Content)System.Web.Hosting.HostingEnvironment.Cache[theCacheKey];

    }
    catch (Exception ex)
    {
        ErrorHelper.LogError("Content:GetCached", ex);
    }           
    return theContent;
}

I call upon the Node and it's properties like this:

MMG.BusinessLayer.Content _Content = new MMG.BusinessLayer.Content();

// Inside the function call is this:

_Content    = MMG.BusinessLayer.Content.GetCached(Context.GetContent());

And GetContent method looks like this:

public static Node     GetContent  (this HttpContext aContext) 
{ 
    if (aContext.Items["Content"] == null)
    {
        Node theNode = new Node();

        try
        {
            int theContentID = 0;

            if (int.TryParse(aContext.Request["cid"], out theContentID))
            {
                try
                {
                    theNode = new Node(theContentID);
                }
                catch (Exception ex)
                {
                    ErrorHelper.LogError("ContextExtensions:GetContent", ex);
                }
            }
            else
            {
                Location theLocation = aContext.GetLocation();
                Node     theSiteNode = new Node(theLocation.ParentID);


                foreach (Node theFolderNodes in theSiteNode.Children)
                {
                    if (theFolderNodes.NodeTypeAlias == "Folder")
                    {
                        foreach (Node theChildNode in theFolderNodes.Children)
                        {
                            if (theChildNode.NodeTypeAlias == "Home")
                            {
                                theNode = theChildNode;
                                break;
                            }
                        }
                    }
                }
            }
        }
        catch (Exception ex)
        {
            ErrorHelper.LogError("ContextExtensions:GetContent", ex);
        }

        aContext.Items.Add("Content", theNode);
    }

    return (Node)aContext.Items["Content"];
}

What could be the problem?