UploadStoryPhotoAsync for stories doesn't seem to work properly 

I'm trying to get story creation to work using this method
 ```c#
 await InstaApi.StoryProcessor.UploadStoryPhotoAsync(image, "someawesomepicture") 
```

but it doesn't seem to work too well anyway, I get a return message saying "**Unknown Server Error**", so either I'm doing something that doesn't work, or the method doesn't seem to work any more? 
