Grid does not react properly to data reload to release selected items

<TelerikGrid Data="@Service.ProductSubmissions"
             Resizable="true"
             SelectionMode="GridSelectionMode.Multiple"
             FilterMode="@GridFilterMode.FilterMenu"
             EditMode="@GridEditMode.Inline"
             Height="100%"
             Pageable="true"
             Sortable="true"
             Groupable="false"
             SortMode="@SortMode.Single"
             OnEdit="@GridRowEdit"
             OnCreate="@(async args => await Service.CreateAsync(args))"
             OnUpdate="@(async args => await Service.UpdateAsync(args))"
             @bind-SelectedItems="@Service.SelectedItems"
             @bind-Page="@Service.GridPageIndex"
             PageSize="@Service.GridPageSize"
             PageSizeChanged="@Service.PagerPageSizeChanged"
             @ref="@Grid" >

Console.WriteLine("before update request");

                Console.WriteLine($"selected items count before: {SelectedItems.Count()}");

                var updateResponse = await _productSubmissionService.UpdateAsync(
                    new ProductSubmissionUpdateRequestModel(submissionModel, new List<int>(),
                        SelectedItems.Select(_ => _.Id).ToList(), null));

                Console.WriteLine($"selected items count after: {SelectedItems.Count()}");

                Console.WriteLine("update request - done");

                await FinalizeUpdate(updateResponse);

                Console.WriteLine("finalize update");

                Console.WriteLine($"selected items count after 2: {SelectedItems.Count()} | Any {(SelectedItems.Any() ? 1 : 0)}");

                if (SelectedItems.Any())
                {
                    Console.WriteLine("has selected items");

                    //SelectedItems = Enumerable.Empty<ProductSubmissionModel>();

                    await GetSubmissions(_productState.Value.ProductId.Value);

                    Console.WriteLine("reload - done");
                }

var submissions = await _productSubmissionService.GetAsync(productId, _versionId);
            await IfHasFiles(submissions);
            Console.WriteLine("exit GetSubmissions");
            ProductSubmissions = new ObservableCollection<ProductSubmissionModel>(submissions);