AppManager - Windows event log on 2008r2

AppManager - Windows event log on 2008r2

hello,
I found that in windows 2008 r2 machines are not properly collected logs windows.
if I click on "View All Events" list screen remains blank.
I can easily configure the 2003 and the logs are properly collected and managed.
on all the systems on my network the firewall is disabled and all queries are executed in mode "wmi".

I had the same error with version 10600 and 10700

is a known problem?
how can I fix this?

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