Please Help - "_noprocess_" and "Please verify the file type is an image and try again" Errors in labeled graphic block type.

Hi,

I have been looking for a solution to have better image quality in my Rise modules, I am creating system training at the moment and require many screenshots and will be using the "labelled graphic" block type in Rise. I've tried to use the _noprocess_ workaround using .tiff file types and it gives me this error and won't even display the image.  

So I turned to BMP file types which are a lot larger and provide hopefully better quality, but the image is not uploading and I'm getting this error. 

I have attached the original .bmp file and the .tiff files.

Please Help.