I'm currently working with manage engine support on an issue with my instance of AD Manager after a service pack change was made last year.
The issue is whenever we attempt to run a group object report it seems to hang like it doesn't finish. The vendor informed me that this is because the product has been modified to perform a domain sync with all group objects in the domain after generating the group report. Because we have 14,000 objects in our domain it hangs up the group object report for 30-40 mins.
I just want to poll the group here and see if anyone else here is having this issue with generating group reports in AD Manager. Seems a little odd to attach group sync after the group report when the regular domain sync happens every few hours.