Terrain that matches the assembly lists
Every piece in the terrain key, counted the way the book counts it. Shrubs A and Shrubs B are two different sculpts and a set holds two of each — the editor merged them into one piece capped at two, which under-reported your grass by half. The Vespene Geyser is one per set, not two.
The Lost Temple Ramp is a real piece now. It was flagged "preview, not counted"; the rulebook asks for one per set and builds three of its nine layouts around it. It is redrawn from scratch too: its actual stepped footprint instead of a plain rectangle, a kerbed incline you can read the direction of, and its two access points where they really are — at the ramp's foot, and where the ramp meets the platform. Those two points are the only way on or off it. The Size badge reads S3 over the platform and S1 over the ramp, because a model on a ramp is at MID GROUND however high the platform is.
Your saved maps still work. Nothing moves and nothing disappears. Maps built before the split count every shrub as Shrubs A, so a four-shrub map now reads as needing two sets — swap half of them to Shrubs B and it fits one again.