Ran into an issue the other day when we were looking at the click events for a specific campaign.  Here’s what’s going on:

• We see the click event for that campaign on the user’s profile. 
• We also see the user show up on the campaign Link Activity page for the campaign (for the specific URL that they clicked).
• However, the user doesn’t show up when we visit Recipient Activity » Clicked for that particular campaign.

Is it possible that there’s a filter on the Recipient Activity » Clicked view that’s removing this particular user?