JS error: data[caption_type] is undefined

Hello,

We’re getting the error data[caption_type] is undefined which breaks the media library. It’s only broken on a single site (in a large multisite installation) so it appears to be something specific to a media that was uploaded to that site.

We’re running WordPress 4.6.11, which is an older version, so that may factor into the problem.

TypeError: data[caption_type] is undefined[Learn More]
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https://site.com/subsite/wp-admin/load-scripts.php:11:3592
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https://site.com/subsite/wp-admin/load-scripts.php:11:12232
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