Ok I did exactly as you said. When I went to the ECS list, it showed me Brian the Lion game. I select it, and same as before, TL quits, and nothing happens (just workbench screen).
The name of the slave inside DH0:TinyTest/BrianTheLion is "BrianTheLion.slave"
If I double click the Brian The Lion icon without using TinyLoader, it works fine.
See here, this is what I have: