[mk124]

The problem is not the VehicleLifecycleHolder. I made a little mistake in the example gamemode, where I add a BeforeCheck Handler to the TestCommands class which checks if the player is a admin. So, if he's not a admin no commands will be executed, and the event won't be canceled -> goes to next event handler which is probably your "Unknown command" handler. You can see my commit here: https://github.com/Shoebill/example-...f92276bf8dfc43
You should change it in your gamemode too, if you want it to work.

(I also added it into the wrong CommandGroup, that was the main problem which triggered all the problems)