Fail request DNSsec on one device from gtm group sync

Hi, i have the problem with the configuration from DNSSec, I recently set up DNSsec on a device F5 GTM that is synchronized, at the moment of requesting the request on one of them, no have problem, but at the moment of requesting the request of the other group gtm does not respond DNSsec, have any idea of ​​why Does the other GTM not apply the DNSsec configuration?