1) ASSERT: make sure you have a local forge runtime installed on your harddrive and added in the forge preferences 2) ASSERT: make sure forge tooling is running on local runtime 3) ASSERT: make sure you have the Forge view opened and forge running 4) EXEC: in the forge preferences hit Edit but dont change anything. Simply hit "OK" and close your preferences Result: Once you get back from preferences the forge view is not responding. You cannot enter any input and the Stop button is not responding either. 5) EXEC: close the forge view and reopen it: Result: The forge view is telling you that the forge runtime is not running: It pretty much looks like as if editing the runtime kills the runtime without the view noticing it.