DataGrid Master Detail Hierarchy error

I have an app that uses a multi layered version of DataGrid Master Detail Hierarchy demo. It works fine displaying results on the grid on first run but on second run with same results I get the following error:

Error: Microsoft.CSharp.RuntimeBinder.RuntimeBinderException: 'Microsoft.AspNetCore.Components.ComponentBase' does not contain a definition for 'Filterable'

Full stack trace:

Error: Microsoft.CSharp.RuntimeBinder.RuntimeBinderException: 'Microsoft.AspNetCore.Components.ComponentBase' does not contain a definition for 'Filterable'
at CallSite.Target(Closure , CallSite , Object )
at System.Dynamic.UpdateDelegates.UpdateAndExecute1[T0,TRet](CallSite site, T0 arg0)
at Radzen.QueryableExtension.<>c.<.cctor>b__7_0(Object c)
at System.Linq.Enumerable.WhereEnumerableIterator1.MoveNext() at System.Linq.Enumerable.Any[TSource](IEnumerable1 source)
at Radzen.QueryableExtension.Where[T](IQueryable1 source, IEnumerable1 columns)
at Radzen.Blazor.RadzenGrid1.get_View() at Radzen.Blazor.RadzenGrid1.Reload()
at System.Threading.Tasks.Task.<>c.b__139_0(Object state)
at Microsoft.AspNetCore.Components.Rendering.RendererSynchronizationContext.ExecuteSynchronously(TaskCompletionSource`1 completion, SendOrPostCallback d, Object state)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
--- End of stack trace from previous location where exception was thrown ---
at Microsoft.AspNetCore.Components.Rendering.RendererSynchronizationContext.ExecuteBackground(WorkItem item)

Figure it out...it was a class permission issue for a class being used for the grid data parameter.