to hide specific sections from non-connections.
LinkedIn’s backend doesn’t just flip a switch. When you unblock someone, their profile data (posts, comments, connection history) has to be re-indexed across LinkedIn’s servers. Blocking again immediately would force a contradictory re-index, creating ghost data—where you’d see notifications from a “blocked” user or they’d see your likes on their old posts. The 48-hour wait ensures all caches clear.
If you find yourself unable to re-block someone on LinkedIn immediately after unblocking them, it isn't a bug—it’s a built-in safety feature.
Simply wait exactly 48 hours from the moment you clicked "Unblock".
I reached out to LinkedIn Premium support with this exact scenario. Their official response was generic: