If you are part of a LinkedIn event with that person, you may need to "Quit the event" (even past ones) for the block option to reappear.
You’ve just unblocked a former colleague or recruiter on LinkedIn, expecting to have a clean slate. But when you try to block them again—maybe you saw something you didn’t like, or you unblocked them by accident—LinkedIn hits you with an error. The block button is grayed out.
This is not a bug. It is not a glitch. It is a deliberate, engineered feature of LinkedIn’s network integrity system. Here is the exclusive, technical breakdown of why this happens.
During those 48 hours:
Many users block someone simply to force an unfollow, then unblock them immediately to keep them out of their feed without causing "drama." LinkedIn’s 48-hour rule specifically kills this hack.
