Sorry - I'm still a pint low on caffeine. I had not looked at your contributions to see the entry for when you uploaded the file.
I now see that the filename you used is not correct. That is your name for the file on your computer. WikiTree has its own system for naming image files and assigns a name to each file when you upload it. WikiTree calls that file: Hinkle-1032-2.jpg If you use that for the filename, it should work fine.