I was hoping to give you a happy Friday message, but it looks like the behavior you are reporting is a bug related to Filters/Search: After adding more than 20+ tags, the Tag Cloud does not update new tags count. I'm not sure if you've already tried this or how consistently effective this workaround is, but sometimes adding another item to an existing tag will update the tag count correctly.
This bug has been logged in our internal system with a link to this post and your organization associated to it. For your reference, the bug ID is SOS-DEF-2146. You can check future release notes for this ID to see if this bug has been fixed.
If you have any questions about our bug fixing process, I recommend reading this article in our community.
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