Thread:Alice5150/@comment-17710859-20160801094319/@comment-29203151-20160801162325

Alice, make sure that the MIME type of the image matches the extension. Just because you named it   does not mean it is actually a .PNG file.

I have done this before. I had a file with the PNG extension, but it was actually a JPG file. The uploader would not allow the image to be uploaded.

When in doubt, choose the file type in the drop-down.