Upgrade Leads To Broken Images In Content

I noticed when I upgraded from 5.7.? to current through the remote updater / admin area updater, my content now has several broken image links.

Is there a quick fix for this? I tried clearing cache.

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JohnEricDavis replied on at Permalink Best Answer Reply
As it turns out, the thumbnail dimensions seem to be 'invalid.' and Rescanning the files works.