Hello,

just tried to use the new Datatype Grid with two fields. Both are full compatible as documentation says (textstring and simple editor). It looks great feature however when I add a couple of records I got this error

[NullReferenceException: Object reference not set to an instance of an object.]
   umbraco.cms.businesslogic.datatype.DataTypeDefinition.GetByDataTypeId(Guid DataTypeId) +77
   uComponents.Core.DataTypes.DataTypeGrid.DtgDataType.GetStoredValues() +1877
   uComponents.Core.DataTypes.DataTypeGrid.DtgDataType.m_Control_Init(Object sender, EventArgs e) +505
   uComponents.Core.DataTypes.DataTypeGrid.DtgControl.OnInit(EventArgs e) +50
   System.Web.UI.Control.InitRecursive(Control namingContainer) +132
   System.Web.UI.Control.AddedControl(Control control, Int32 index) +276
   System.Web.UI.Control.InitRecursive(Control namingContainer) +132
   System.Web.UI.Control.InitRecursive(Control namingContainer) +420
   System.Web.UI.Control.InitRecursive(Control namingContainer) +420
   System.Web.UI.Control.InitRecursive(Control namingContainer) +420
   System.Web.UI.Control.InitRecursive(Control namingContainer) +420
   System.Web.UI.Control.AddedControl(Control control, Int32 index) +276
   umbraco.controls.ContentControl.addControlNew(Property p, TabPage tp, String Caption) +3675
   umbraco.controls.ContentControl.CreateChildControls() +1435
   System.Web.UI.Control.EnsureChildControls() +181
   umbraco.controls.ContentControl.OnInit(EventArgs e) +122
   System.Web.UI.Control.InitRecursive(Control namingContainer) +132
   System.Web.UI.Control.AddedControl(Control control, Int32 index) +276
   umbraco.cms.presentation.editContent.OnInit(EventArgs e) +1004
   System.Web.UI.Control.InitRecursive(Control namingContainer) +132
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1953

Windows server 2008 .net 4
Umbeaco 4.7
Latest Ucomponents stable version

Any ideas?

Cheers, Giorgos