The Lightstreamer.txt log shows that the data received by the Server is produced by the original StockListDemo Data Adapter; note that fields like "bid_quantity" or "last_price" are logged. In some way, your custom Data Adapter has not replaced the original sample.
In order to eliminate name conflicts, I suggest you to customize the class name of your own Data Adapter and customize the "StandaloneLauncher.cs" source, which, at line 116, loads the Data Adapter. Note that StandaloneLauncher.cs is not a general purpose code, but just a sample code (based on the StockListDemo) that shows how a Remote Server can be included in your own main.