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When resizing a column, I can see on the debug events a lot of handled exceptions being fired:
Exception thrown: 'Newtonsoft.Json.JsonReaderException' in Newtonsoft.Json.dll ("Could not convert string to double: 208.33334350585938px. Path 'width', line 1, position 41.") Exception thrown: 'Newtonsoft.Json.JsonReaderException' in Newtonsoft.Json.dll ("Could not convert string to double: 208.33334350585938px. Path 'width', line 1, position 41.") Hyperlink: Activate Historical Debugging 147.77s [18304] Worker Thread
Although this exception generally does not do any harm, sometimes after resizing a column I get this message on the browser:

and an exception:
Microsoft.AspNetCore.Components.Server.Circuits.RemoteRenderer[100]
Unhandled exception rendering component: Input string was not in a correct format.
System.FormatException: Input string was not in a correct format.
at System.Number.ThrowOverflowOrFormatException(ParsingStatus status, TypeCode type)
at System.Number.ParseInt32(ReadOnlySpan`1 value, NumberStyles styles, NumberFormatInfo info)
at Syncfusion.Blazor.Grids.Internal.WidthController`1.GetWidth(GridColumn column)
at Syncfusion.Blazor.Grids.Internal.WidthController`1.BuildRenderTree(RenderTreeBuilder __builder)
at Microsoft.AspNetCore.Components.Rendering.ComponentState.RenderIntoBatch(RenderBatchBuilder batchBuilder, RenderFragment renderFragment)
at Microsoft.AspNetCore.Components.RenderTree.Renderer.RenderInExistingBatch(RenderQueueEntry renderQueueEntry)
at Microsoft.AspNetCore.Components.RenderTree.Renderer.ProcessRenderQueue()
fail: Microsoft.AspNetCore.Components.Server.Circuits.CircuitHost[111]
Unhandled exception in circuit 'fHSlrc5NFW2BT69Soh_lG7XFWAJOaXJaa94i4wB4iQ4'.
System.FormatException: Input string was not in a correct format.
at System.Number.ThrowOverflowOrFormatException(ParsingStatus status, TypeCode type)
at System.Number.ParseInt32(ReadOnlySpan`1 value, NumberStyles styles, NumberFormatInfo info)
at Syncfusion.Blazor.Grids.Internal.WidthController`1.GetWidth(GridColumn column)
at Syncfusion.Blazor.Grids.Internal.WidthController`1.BuildRenderTree(RenderTreeBuilder __builder)
at Microsoft.AspNetCore.Components.Rendering.ComponentState.RenderIntoBatch(RenderBatchBuilder batchBuilder, RenderFragment renderFragment)
at Microsoft.AspNetCore.Components.RenderTree.Renderer.RenderInExistingBatch(RenderQueueEntry renderQueueEntry)
at Microsoft.AspNetCore.Components.RenderTree.Renderer.ProcessRenderQueue()
Thanks,
Dardan Vokshi