Not all content has gotten their cache rebuilt. This is required to be able to delete libraries, and to display how many contents that uses the library.
You should <strong>upgrade your H5P content types!</strong> The old content types still work, but the authoring tool's look and feel is greatly improved with the new content types. Here's some more info about <a href="%s" target="_blank">upgrading the content types</a>.
If you need any help you can always file a <a href="%s" target="_blank">Support Request</a>, check out our <a href="%s" target="_blank">Forum</a> or join the conversation in the <a href="%s" target="_blank">H5P Community Chat</a>.
