I also found a bug. Not sure if in TornadoFX or in JavaFX.
Steps to reproduce: (TornadoFX, recent snapshot, Mac OS Sierra)
- Have a drawer with multiple items and make the first expanded=true
- Click on one of the drawers that are not expanded
- Click into a different window (IntelliJ IDEA for example)
- Go back to the TornafoFX App and click somewhere inside the view of the current item
--> The view switches back to the default view