Generated report contains information about host not in contact group of the user

Hello,
I’m using the version container 2.1.0p24 of CMK Enterprise and I’m facing issues.
I split my users with contact groups to allow them to have access to a specific list of hosts and services. It is working in the webpage. However, when they generate a report, they can have information about all hosts and services.
How to block this behavior?

I thought about changing the default template by adding a filter on the contact group, but I didn’t want to specify a contact group, I wanted to use a variable as $USERCONTACTGROUPS$.