On another forum with a huge population of complainers, I resize to 800 pixels wide. 1100 seems fine to me.
I noticed yesterday this John Tenniel image would not upload without resizing.
Upon trying again today, I see the new software is not yet functioning for uploaded images (vs hosted images) ... here's the image after I resized it.
On a happy note, it is a great pleasure to have the uploading capability! Most forums do not support that convenience!
Screen Shot 2017-06-17 at 7.51.00 AM.png
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tweedle dee tweedle dum copy.jpg