XF 2.1 Shared IPs not showing same results as "more users" in IP list

Feanor

Active member
Is shared IPs limited by anything such as time or type of log? As an example, a user matched another user with 2 IPs. Only one showed under Shared IPs. I had to go through their IP list and click "more users" for each IP to find the full list of matches.
 
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