Event Summary Reports in Cisco ASA

Event Summary Reports in Cisco ASA

I have problem with Event Summary Reports and Cisco ASA. I see in „Event Summary” table "Information" severity with about 2000 events, but when I click on "Information" link and any ip address I see „No Data Found”. I don't have this problem with "Error" or "Warning" severity (I can see normal syslog informations). What is wrong ?

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