Exception appears by show/hide Columns in Grid

Dears @korchev @enchev ,
I'm trying to hide and show all Columns from the Columns Dropdownlist of the Radzen Grid, but there is an intern Exception as following:

Unable to cast object of type 'System.Linq.EnumerableQuery1[System.Object]' to type 'System.Collections.Generic.IEnumerable1[Radzen.Blazor.RadzenDataGridColumn`1[RadzenBlazorDemos.Models.Northwind.Employee]]'.

If you want to regenerate this exception, go to Blazor DataGrid save/load settings
and click on Columns dropdownlist, and hide all column from first checkbox, then show al columns.

With best regards,
Mustafa Alhelo

Thanks @devmustafa! Fixed immediately and the fix will be part of our next update tomorrow!

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