Kindle Book Cover too small in Kindle library

Scrivener Scrivener for macOS
1

For some reason the Scrivener generated Kindle cover is too small in the Kindle library. My cover image size is 2813 x 4500.
Screen Shot 2018-12-08 at 2.49.18 PM.png

2

Adjusting the image size to 2812 x 5063 did not affect the height in the Kindle Library.