Creating a custom effect, error (Unexpected response)

Under advanced settings I tick on “I want to set brightness per frame” and “Toggle light states in frames”

First frame, I change the temperature and hit done. I change its fade time to 5 seconds.
Add another frame, adjust temperature and brightness and hit done. Change its fade time to 5 seconds.

Hit save, and it gives me this error?


Thanks for reporting, I will look into it. I appreciate the screenshot and the detailed information.