When I first open composer with the project open I get this
ERROR: Runtime error
?:0: attempt to index field ‘sinspector’ (a nil value)
stack traceback:
[C]: in function ‘error’
?: in function ‘gotoScene’
?: in main chunk
and its just a black white screen on composer, then I try to load it with open inside composer and I get this
ERROR: Runtime error
?:0: attempt to index field ‘sinspector’ (a nil value)
stack traceback:
?: in function ‘loadSceneFromData’
?: in function ‘loadSceneFromJSON’
?: in function ‘loadSceneFromJSON’
?: in function ‘loadScene’
?: in function ‘openScene’
?: in function <?:739>
This happend when I’m not loading the scene anywhere, or is the only scene loaded… 
Nothing fancy just a new project from the game default.
I was just playing / learning how to use composer for a scene
Composer works fine when you first make the new scene but it doesn’t load an existing one.
Side question: how do I make a new scene within Composer GUI