Content Management Bugged?

Today during a Session 0 with some new players, I enabled Content Sharing on the Campaign, but disabled all books except for:

• Players Handbook 5.5
• Heroes of Faerun
• Sword Coast Adventurer's Guide

However, when they opened the Shared+Owned tab, they had 87 titles, and only 6 in the Owned.

Notes:

• They only own the Free content, and a 2014 PHB.
• All items in the Shared+Owned are completely accessible to them.
• Disabling Content Management removes their access.

• Re-Enableing the Content Management and blocking all books, they regained all access again to all books.

I know that they get access to all the options, but they SHOULD NOT be able to read all the Adventures books when that content is "Blocked".

I set up my second test account (unsubscribed with nothing but free items) and a test campaign and I can completely reproduce the issue, so it's not just this one account or one campaign (unless I'm the bug).

Is anyone else seeing this issue?

No one experiencing this?