Browser hung ubuntu and i hit reset. After recovery I tried to open project in editor and got project already opened in editor. This seems like it corrected itself after opening project and exiting although there was not another instance of the editor running. At least not visually anyway.

There is an on/off when a project is open
If the engine crash it doesnt trigger the off and it would warn you next opening

Ok. Said something about data corruption so I started thinking I should backup often.