Not sure what is going on - if there was an error you would get a stack trace, if there is no error you should get a scene with every light and switch included. I just checked and it works fine for me, I’m on Ubuntu too. What type of lights and switches are you using?
I’m using Phillips Hue lights, as well as a couple of custom defined lights. Switches are MQTT switches and a couple of template switches.
Is there any kind of way I could see what steps it’s taking to come to an empty config? Even if it’s not erroring out I’d be interested to see what’s going on.
I’m having the same problem. I’ve tried adding in the python lines you recommended and get the same result:
[]
name: My New Scene
entities:
I’m afraid I’m running Wemo, Phillips Hue and Ikea Tradfri all at once.
I’m running Home Assistant on hassbian 4.14.98-v7+ and I’ll miss scenegen if I can’t get it working. It’s been invaluable since I’ve had Home Assistant running.