Hmmm...interesting. So this time, the image is NOT viewable on the web version; only a "View Attachment" link.
But on Tapatalk, you see TWO images; one imbedded, and obviously, another one with is the "preview" to the link...which results in two images showing up.
No biggie...other than people thinking we're goofing up.
Next, I'll try just using the Attach Files button.