I "was" having issue uploading images, I would get the ERROR Umbraco.Web.WebApi.Filters.FileUploadCleanupFilterAttribute - Could not acquire actionExecutedContext.Response.Content System.NullReferenceException: Object reference not set to an instance of an object.

when uploading a JPEG file. but others of the same size would upload fine.

Doing some digging I tried the standard recommended fixes.
File permissions, Adjusting Web Config maxRequestLength , targetFramework and other fixes. same error every time.

Digging in more I figured that it's the function. objectContent = actionExecutedContext.Response.Content as ObjectContent;

Throwing it, as its not the media type it think it is. (though it was / is a jpg file ??) Bad file -> http://iwasmakingajoke.com/buggyfile/badfile.jpg Found a web site I could convert it to Good file -> http://iwasmakingajoke.com/buggyfile/goodfile.jpg

When saved and you try to save in the media folder it will throw an error, even though it's a jpeg, the issue it isn't not a "normal" jpeg, but the binary file starts with RIFF and I think it's Google's new image format.

Is there a way to get these files to be accepted by Umbraco so I can upload and use them without having to convert them ?