Problem with filtering by Custom variables

Hello everyone! We faced a couple of problems with Custom Variables. After setting them in the following format $Piwik->setCustomVariable(2, ‘Email’, $FullUserInfo->email)

1st is that they their are not reflected in the filer section smth like this >
2ed is that the filters with customer segments are not working for us ;(

Does smb know what can cause such behaviour?