Hey Matt:

I'm having issues with 2nd level nodes loading in a project I just imported. Does this sound like the same issue you had? Did you find a solution? Log shows:

2015-01-09 11:14:06,736 [76] ERROR Umbraco.Core.UmbracoApplicationBase - [Thread 79] An unhandled exception occurred
System.Web.HttpUnhandledException (0x80004005): Exception of type 'System.Web.HttpUnhandledException' was thrown. ---> System.NullReferenceException: Object reference not set to an instance of an object.
   at Lecoati.uMirror.Bll.BllProject.GetProject(Nullable`1 id, Boolean withChildren) in c:\Project\TFS\lct_umirror\Src\Lecoati.uMirror\Bll\BllProject.cs:line 144
   at Lecoati.uMirror.Bll.BllProject.GetProject(Nullable`1 id) in c:\Project\TFS\lct_umirror\Src\Lecoati.uMirror\Bll\BllProject.cs:line 128
   at Lecoati.uMirror.Bll.BllProject.GetProjectByNode(Node node) in c:\Project\TFS\lct_umirror\Src\Lecoati.uMirror\Bll\BllProject.cs:line 183
   at Lecoati.uMirror.Ui.editNode.OnInit(EventArgs e) in c:\Project\TFS\lct_umirror\Src\Lecoati.uMirror\Ui\Dialogs\editNode.aspx.cs:line 40
   at System.Web.UI.Control.InitRecursive(Control namingContainer)
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
   at System.Web.UI.Page.HandleError(Exception e)
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
   at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
   at System.Web.UI.Page.ProcessRequest()
   at System.Web.UI.Page.ProcessRequestWithNoAssert(HttpContext context)
   at System.Web.UI.Page.ProcessRequest(HttpContext context)
   at ASP.umbraco_plugins_umirror_dialogs_editnode_aspx.ProcessRequest(HttpContext context) in c:\Users\dawhite\AppData\Local\Temp\Temporary ASP.NET Files\vs\49d297fc\4babb2a7\App_Web_editnode.aspx.f07c08a0.fg0esm4y.0.cs:line 0
   at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)