Workaround is deleting local store and enter values again.
Error: System.Security.Cryptography.CryptographicException: The key {93658e9c-b408-4973-818c-8fedd2078898} was not found in the key ring. For more information go to http://aka.ms/dataprotectionwarning
at Microsoft.AspNetCore.DataProtection.KeyManagement.KeyRingBasedDataProtector.UnprotectCore(Byte[] protectedData, Boolean allowOperationsOnRevokedKeys, UnprotectStatus& status)
at Microsoft.AspNetCore.DataProtection.KeyManagement.KeyRingBasedDataProtector.Unprotect(Byte[] protectedData)
at Microsoft.AspNetCore.DataProtection.DataProtectionCommonExtensions.Unprotect(IDataProtector protector, String protectedData)
at Microsoft.AspNetCore.Components.Server.ProtectedBrowserStorage.ProtectedBrowserStorage.Unprotect[TValue](String purpose, String protectedJson)
at Microsoft.AspNetCore.Components.Server.ProtectedBrowserStorage.ProtectedBrowserStorage.GetAsync[TValue](String purpose, String key)
at BlazorRcon.ViewModels.MainViewModel.LoadStateAsync() in C:\Source\Personal\BlazorRcon\Source\BlazorRcon\ViewModels\MainViewModel.cs:line 27
at BlazorRcon.Pages.Index.OnAfterRenderAsync(Boolean firstRender) in C:\Source\Personal\BlazorRcon\Source\BlazorRcon\Pages\Index.razor.cs:line 28
at Microsoft.AspNetCore.Components.RenderTree.Renderer.GetErrorHandledTask(Task taskToHandle, ComponentState owningComponentState)