Opening files on samba shares causing internal exceptions in c++/winrt UWP app

Question

Sorry if this problem is really at a lower level, but I am getting this via a c++/winrt single page app. Is there anywhere better for me to report this? The following program has the user picking a directory, and then tries to load all the images in this directory. I think it works, at least most of the time, but when I try it on a samba share of a Raspberry Pi there are lots of internal exceptions, which I think may be degrading the performance.

	Windows::Foundation::IAsyncAction MainPage::ClickHandler(IInspectable const&, RoutedEventArgs const&)  
	{  

		using namespace winrt::Windows::Storage;  
		using namespace winrt::Windows::Storage::Pickers;  
  
		Windows::Storage::Pickers::FolderPicker _folderPicker;  
		_folderPicker.FileTypeFilter().Append(winrt::hstring(L"*"));  
		_folderPicker.SuggestedStartLocation(PickerLocationId::PicturesLibrary);  
  
		winrt::Windows::Storage::StorageFolder _folder = NULL;  
  
		_folder = co_await _folderPicker.PickSingleFolderAsync();  
  
		std::vector<winrt::hstring> _fileTypeFilter;  
		_fileTypeFilter.push_back(L&#34;.jpg&#34;);  
		_fileTypeFilter.push_back(L&#34;.png&#34;);  
		_fileTypeFilter.push_back(L&#34;.bmp&#34;);  
		_fileTypeFilter.push_back(L&#34;.gif&#34;);  
  
		Windows::Storage::Search::QueryOptions	_queryOptions(Windows::Storage::Search::CommonFileQuery::DefaultQuery, _fileTypeFilter);  
		_queryOptions.IndexerOption(Windows::Storage::Search::IndexerOption::DoNotUseIndexer);  
  
		  
		Windows::Storage::Search::StorageFileQueryResult _StorageFileQueryResult = _folder.CreateFileQueryWithOptions(_queryOptions);  
  
		auto _storageFiles = co_await _StorageFileQueryResult.GetFilesAsync();  
  
		for (auto _storageFile : _storageFiles)  
		{  
			using namespace Windows::Storage::Streams;  
			using namespace Windows::Graphics::Imaging;  
			IRandomAccessStreamWithContentType _stream = co_await _storageFile.OpenReadAsync();  
  
			BitmapDecoder _bitmapDecoder = co_await Windows::Graphics::Imaging::BitmapDecoder::CreateAsync(_stream);  
  
			BitmapTransform	_transform = BitmapTransform();  
			_transform.ScaledHeight(240);  
			_transform.ScaledWidth(360);  
  
			Windows::Graphics::Imaging::PixelDataProvider _pixelProvider = co_await _bitmapDecoder.GetPixelDataAsync(BitmapPixelFormat::Bgra8, BitmapAlphaMode::Ignore, _transform, ExifOrientationMode::IgnoreExifOrientation, ColorManagementMode::DoNotColorManage);  
  
			com_array<uint8_t> _com_array = _pixelProvider.DetachPixelData();  
		}  
    
	}  

The last time I ran this, I got lots of these in the output window:

onecore\shell\shcore\libs\stream\managedcreatefile.cpp(1339)\shcore.dll!00007FFC498F6A42: (caller: 00007FFC498C7ACF) ReturnHr(185) tid(40f4) 80070057 The parameter is incorrect.

onecore\shell\shcore\libs\stream\managedcreatefile.cpp(1339)\shcore.dll!00007FFC498F6A42: (caller: 00007FFC498C7ACF) ReturnHr(186) tid(40f4) 80070057 The parameter is incorrect.

onecore\shell\shcore\libs\stream\managedcreatefile.cpp(1339)\shcore.dll!00007FFC498F6A42: (caller: 00007FFC498C7ACF) ReturnHr(187) tid(40f4) 80070057 The parameter is incorrect.

onecore\shell\shcore\libs\stream\managedcreatefile.cpp(1339)\shcore.dll!00007FFC498F6A42: (caller: 00007FFC498C7ACF) ReturnHr(188) tid(40f4) 80070057 The parameter is incorrect.