The Asset Downloads report in the Asset Reporting UI  isn't displaying any results.
For the Asset Downloads reporting to work properly, the event recorder OSGi configuration has to be enabled:
- Go to http://host:port/system/console/configMgr/com.day.cq.dam.core.impl.DamEventRecorderImpl
- Click Enables this service check box.
- Enable the Asset downloaded (DOWNLOADED) check box.
- Click Save.
Only future downloads would be tracked. All past downloads would not be reported.