getent group is not functioning well While enabling enumerate on sssd.conf in RHEL8

Issue

• Getent group is not showing details of domain users details.

[root@rakkumar ~]# getent group 

test_user:*:439:  --> this is local user, not fetching details of domain users.

[root@rakkumar ~]#

• Enumeration was triggered successfully but it was not completed with in 300 second.