For a little more info on what I found which will hopefully help others: There were lots of JS errors in the browser developer tools Console tab like this:  Uncaught SyntaxError: Unexpected token < which is a good indication that there is an error message, or at least some HTML being returned in the AJAX request which is not expected by the JS script. So then I went to the Network tab of the developer tools and found the script that is uploading images (?id=1&InputfieldFi
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