I have a couple Iris Smart Plugs, using the Generic ZWave Repeater and Generic Zigbee Outlet drivers and in the Logs\Show Past Logs, they show up as Generic... Even though the Device Name and Device Label are both set to the real name
If I go into the logs, I can see what device they are for
Rick
This is probably because the log was created with the original name.
If you have logging switched on for a device and do something to create a log entry (e.g switch on/off) then rename the device and do the same again, you will find the log entries under the old name (unless you refresh the log page)