# Radzen nuget update new error appeared - SOLVED

**URL:** <https://forum.radzen.com/t/radzen-nuget-update-new-error-appeared-solved/15028>\
**Category:** Radzen.Blazor Components\
**Created:** [August 24, 2023, 12:16pm UTC](https://forum.radzen.com/t/radzen-nuget-update-new-error-appeared-solved/15028 "2023-08-24T12:16:21Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![marekm294](https://forum.radzen.com/letter_avatar_proxy/v4/letter/m/74df32/32.png) [@marekm294](https://forum.radzen.com/u/marekm294)\
**Post date:** [August 24, 2023, 12:16pm UTC](https://forum.radzen.com/t/radzen-nuget-update-new-error-appeared-solved/15028/1 "2023-08-24T12:16:21Z")

</div>

Hi I just updated Radzen from 4.14.4 to 4.15.7 and I'm getting error when I touch group/reorder icon in DataGrid ColumnHeader.

blazor.webassembly.js:1 crit: Microsoft.AspNetCore.Components.WebAssembly.Rendering.WebAssemblyRenderer[100]  
Unhandled exception rendering component: Cannot read properties of null (reading 'parentNode')  
TypeError: Cannot read properties of null (reading 'parentNode')  
at Object.startColumnReorder ([https://localhost:7267/\_content/Radzen.Blazor/Radzen.Blazor.js:1516:21](https://localhost:7267/_content/Radzen.Blazor/Radzen.Blazor.js:1516:21))  
at [https://localhost:7267/\_framework/blazor.webassembly.js:1:3337](https://localhost:7267/_framework/blazor.webassembly.js:1:3337)  
at new Promise ()  
at Object.beginInvokeJSFromDotNet ([https://localhost:7267/\_framework/blazor.webassembly.js:1:3311](https://localhost:7267/_framework/blazor.webassembly.js:1:3311))  
at Object.Gt [as invokeJSFromDotNet] ([https://localhost:7267/\_framework/blazor.webassembly.js:1:62569](https://localhost:7267/_framework/blazor.webassembly.js:1:62569))  
at Object.Ii ([https://localhost:7267/\_framework/dotnet.7.0.10.gb4t2l01ts.js:5:71974](https://localhost:7267/_framework/dotnet.7.0.10.gb4t2l01ts.js:5:71974))  
at \_mono\_wasm\_invoke\_js\_blazor ([https://localhost:7267/\_framework/dotnet.7.0.10.gb4t2l01ts.js:14:103886](https://localhost:7267/_framework/dotnet.7.0.10.gb4t2l01ts.js:14:103886))  
at wasm://wasm/009931b2:wasm-function[313]:0x1d6b6  
at wasm://wasm/009931b2:wasm-function[283]:0x1cae4  
at wasm://wasm/009931b2:wasm-function[221]:0xe1d4  
Microsoft.JSInterop.JSException: Cannot read properties of null (reading 'parentNode')  
TypeError: Cannot read properties of null (reading 'parentNode')  
at Object.startColumnReorder ([https://localhost:7267/\_content/Radzen.Blazor/Radzen.Blazor.js:1516:21](https://localhost:7267/_content/Radzen.Blazor/Radzen.Blazor.js:1516:21))  
at [https://localhost:7267/\_framework/blazor.webassembly.js:1:3337](https://localhost:7267/_framework/blazor.webassembly.js:1:3337)  
at new Promise ()  
at Object.beginInvokeJSFromDotNet ([https://localhost:7267/\_framework/blazor.webassembly.js:1:3311](https://localhost:7267/_framework/blazor.webassembly.js:1:3311))  
at Object.Gt [as invokeJSFromDotNet] ([https://localhost:7267/\_framework/blazor.webassembly.js:1:62569](https://localhost:7267/_framework/blazor.webassembly.js:1:62569))  
at Object.Ii ([https://localhost:7267/\_framework/dotnet.7.0.10.gb4t2l01ts.js:5:71974](https://localhost:7267/_framework/dotnet.7.0.10.gb4t2l01ts.js:5:71974))  
at \_mono\_wasm\_invoke\_js\_blazor ([https://localhost:7267/\_framework/dotnet.7.0.10.gb4t2l01ts.js:14:103886](https://localhost:7267/_framework/dotnet.7.0.10.gb4t2l01ts.js:14:103886))  
at wasm://wasm/009931b2:wasm-function[313]:0x1d6b6  
at wasm://wasm/009931b2:wasm-function[283]:0x1cae4  
at wasm://wasm/009931b2:wasm-function[221]:0xe1d4  
at Microsoft.JSInterop.JSRuntime.d\_\_16`1[[Microsoft.JSInterop.Infrastructure.IJSVoidResult, Microsoft.JSInterop, Version=7.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]].MoveNext() at Microsoft.JSInterop.JSRuntimeExtensions.InvokeVoidAsync(IJSRuntime jsRuntime, String identifier, Object[] args) at Radzen.Blazor.RadzenDataGrid`1.d\_\_321[[VendorManagement.Client.Model.Product, Client, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].MoveNext()  
at Microsoft.AspNetCore.Components.ComponentBase.CallStateHasChangedOnAsyncCompletion(Task task)  
at Microsoft.AspNetCore.Components.RenderTree.Renderer.GetErrorHandledTask(Task taskToHandle, ComponentState owningComponentState)

Is it new bug in new version?

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<div class="post-metadata">

**Author:** ![enchev](https://forum.radzen.com/user_avatar/forum.radzen.com/enchev/32/16_2.png) [@enchev](https://forum.radzen.com/u/enchev)\
**Post date:** [August 24, 2023, 1:22pm UTC](https://forum.radzen.com/t/radzen-nuget-update-new-error-appeared-solved/15028/2 "2023-08-24T13:22:32Z")

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Both grouping and columns reorder works normally in our demos:  
[https://blazor.radzen.com/datagrid-column-reorder](https://blazor.radzen.com/datagrid-column-reorder)  
[https://blazor.radzen.com/datagrid-grouping-api](https://blazor.radzen.com/datagrid-grouping-api)

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<div class="post-metadata">

**Author:** ![marekm294](https://forum.radzen.com/letter_avatar_proxy/v4/letter/m/74df32/32.png) [@marekm294](https://forum.radzen.com/u/marekm294)\
**Post date:** [August 24, 2023, 1:40pm UTC](https://forum.radzen.com/t/radzen-nuget-update-new-error-appeared-solved/15028/3 "2023-08-24T13:40:01Z")

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It started to work once I reloaded page with Empty Cache and Hard Reload - reload option