isCaught and LauncherPosition metadata missing

I am working with a drone agentMode and I need access to this data. However, although I find them in the code of DroneFPSAgentController.cs, when I try to access, say, metadata['agent']['launcherPosition'] I get a key error.

I have downloaded this project https://github.com/KuoHaoZeng/Visual_Reaction which uses ai2thor 2.4.0 and the fields are available with this version but I would like to work with the latest version of ai2thor.

Do I need to modify something in the python API or is it something I need to change in the unity backend?