Adding background checkout photo difficulties

[TiteKnotCoffee]

I am setting up my location details and am having issues with adding a photo in the set up process and it will not let me save without adding a photo.  I have used several different photos/logos and adjusted the size to the recommended 2328 x 1144 px size and it still will not let me save.  The error at the top of the page reads "Profile image should have content type image/jpeg, image/png..."

I've tried everything I know and changed sizes of files, file types, etc., and it still will not let me save.  I would just drop it and come back to it, but it won't let me move on in the set up process until this file is uploaded.  

[Goldneye]

HI, need a bit more information to hopefully help.  Can you share a screenshot or Link?