Hi there,
big bug is not what was planned to write now, but life goes like that. It only affected new players (for demo that means nearly everybody). When starting campaign for the first time, instead of first mission info there was placeholder text and image. This probably cost us a lot of players, cause not many people want to play "Lorem ipsum" mission.
Anyway, it is fixed now with latest update and here are other things that changed during July:
new Challenge type gameplay - basicly Free play with constraints
heat cogeneration - a way to lower costs or earn some more - for late game (not in demo)
hydro power and water flow in weather (most of this later game, part of challenge in demo)
secondary chart type - now only for batteries as "current charge" level
new larger citizen buildings
plants growth based on current temperature
new energy storage types - for late game only, not in demo
priority feature for structures + override button
Next update will be slimmer - some of us have vacation in August.
Until then ...