Offline production was nerfed way to much. One of my productions is lvl 88, so it yields now 8,8k per hour and it costs ~20 million+ to upgrade next stage. Simple math - it takes ~95 to get the next stage with only the production of the factory. Before it was quiete balanced in terms of costs / yield. Now its just a way off. You def. need to look into that. Renders production more than useless.
If you land on boss levels (100's) with auto advance, it will freeze auto advance until u reactivate it or press next. Does not happen if i change skip wave to not hit the next 100's, it advances further. Seems to be a bug.