Local port log filter error

Hey All,

I'm using SEP 12.1.4 on Windows Server 2008. When I enter anything other than an asterisk (like 135) in the Local port field when trying to do an advanced filtering of the logs I get a dialog box with the error "Value must be numeric, greater or equal to zero and less than 65535 or *". What am I doing wrong? Google hasn't produced a solution.

Thanks In Advance,