UWP RichEditBox LoadFromStram method cannot complete execution when we load corrupted .rtf file

Question

I created UWP application in which I set minimum and target version to fall creator update. When I want to read corrupted .rtf file then LoadFromStream method cannot complete its execution and cannot throw any exception either.

var fileStream = await file.OpenAsync(FileAccessMode.Read); 
RichEditBox.Document.LoadFromStream(TextSetOptions.FormatRtf‌​, fileStream); 
fileStream.Dispose();

Help me to solve this problem.