Previous link doesn’t clear

Hi, I am having problems with this plugin-widget in that it has latched onto the url for the previous image and will not release it to add a new one.
Even though I am putting in the url for the image in my media library, it is still going to an earlier image. It is taking this link:
http://www.caglecartoons.com/viewimage.asp?ID=2E84710F-A8B6-44B1-8EA6-CA9DE0AE7654https://www.uncommonthought.com/mtblog/wp-content/uploads/2018/04/TrumpCensusPolicy_AdamZyglis208731.jpg

Instead of going to either this link
https://www.uncommonthought.com/mtblog/wp-content/uploads/2018/04/TrumpCensusPolicy_AdamZyglis208731.jpg

OR this link
http://www.caglecartoons.com/viewimage.asp?ID={218FFB31-C04D-4DC5-9862-694DBC966340}

I have tried clearing the cache, and different browsers.

When I paste in thr link, all the stuff from Cagle is NOT visible in the link field.

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