Can´t load a canvas file after exiting Play mode about node_editor_framework

[Seneral]

To fix that, add these lines somewhere in NodeEditor.checkInit inside the if block:

#if UNITY_EDITOR
                UnityEditor.EditorApplication.playmodeStateChanged += () => { initiated = false; InitiationError = false; };
#endif

That simply makes sure the NodeEditor is re-inited after entering and editing playmode:)