AGMT0003E Dropping <x> events, Queue size is <y>.
The system is receiving more events than it can handle and must drop some to prevent being overloaded.
Transaction events are dropped and thus do not appear on the UI.
If the dropped events occur at a rare peak, increasing the threshold values in the config (<INSTALL_DIR>/ttg/config/ibm_appd_ttg.cfg) can prevent the issue in the future. If this is a common issue, the AppDynamics TTG might need to be installed on a system with more processing power to handle the higher transaction load.