Not creating all the cohorts

[cjiwonder]

I have installed Moodle 3.9 in the Windows 2019 Server and enabled Active Directory login and it's working fine without any issues. Now I downloaded ldap sync plugin and copied ldap folder to moodle/local and added cli/syc_cohorts.php and sync_cohorts_attribute.php in the Task Scheduler. After run the task scheduler, only 20 cohorts created out of 150 groups and very few of them only added in the cohorts not all the members.
Group attribute - cn
Group class - group
Process nested groups - yes
Auto create missing cohorts - yes

Can any one please help me, thanks in advance.