Image Map Area Limits / Display Problems in WordPress?

I have an image map with a lot of defined areas. The image map and image show up in WordPress Admin in the Visual view, but after a certain number of defined areas, the image won’t show up on the live page when published.

Here are two versions. One has all the links/areas defined and the other only has as many as I could include before it stops showing up.

Partial:
https://www.danwilsonmusic.com/illustrated-influences/

Complete:
https://www.danwilsonmusic.com/illustrated-influences-full/

As you can see, the “Complete” set of image map links simply results in the entire page content area not showing up.

Any ideas?

Complete HTML for the Image Map is here:

<img src="https://www.danwilsonmusic.com/wp-content/uploads/2016/01/20130916-illuminated-influences-page.jpg" alt="" width="592" height="768" usemap="#Map"/>
<map name="Map">
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	<area shape="rect" coords="320,12,439,31" href="https://en.wikipedia.org/wiki/Ray_bradbury" alt="Ray Bradbury">
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	<area shape="rect" coords="497,542,569,570" href="https://en.wikipedia.org/wiki/Yeats" alt="Yeats">
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	<area shape="rect" coords="562,575,579,722" href="https://en.wikipedia.org/wiki/Edward_Gorey" alt="Edward Gorey">
	<area shape="rect" coords="48,460,88,499" href="https://open.spotify.com/artist/22bE4uQ6baNwSHPVcDxLCe" alt="The Rolling Stones">
	<area shape="rect" coords="92,517,121,548" href="https://en.wikipedia.org/wiki/Jasper_Johns" alt="Jasper Johns">
	<area shape="rect" coords="48,505,81,534" href="https://open.spotify.com/artist/6kACVPfCOnqzgfEF5ryl0x" alt="Johnny Cash">
	<area shape="rect" coords="302,554,344,581" href="https://en.wikipedia.org/wiki/Richard_Guindon" alt="Richard Guindon">
	<area shape="rect" coords="175,544,274,608" href="https://en.wikipedia.org/wiki/Patrick_o'brian" alt="Patrick O'brian">
	<area shape="rect" coords="271,638,330,648" href="https://en.wikipedia.org/wiki/Craig_M._Wright" alt="Craig Wright">
	<area shape="rect" coords="27,355,42,516" href="https://open.spotify.com/artist/19eLuQmk9aCobbVDHc6eek" alt="Louis Armstrong">
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</map>