Loved the upgrade
At the moment, there's a bug in audio in the gear age when my walking is between the outside puzzle and the entry door--it goes silent until I reach either end.
At the moment, the visual transition is bumpy in these places there are slidey doors: the gear age, and the ship age. Specifically, the animation is smooth as I am being taken into the next chamber, then there is an abrupt jump or change in height.