fix: switch to consistent heights for schematic generation

Core/src/main/java/com/plotsquared/core/generator/HybridPlotWorld.java

@@ -275,7 +275,7 @@ public class HybridPlotWorld extends ClassicPlotWorld {
                 SCHEM_Y = getMinGenHeight();
                 plotY = 0;
             } else if (!Settings.Schematics.PASTE_ON_TOP) {
-                SCHEM_Y = getMinBuildHeight();
+                SCHEM_Y = getMinGenHeight();
                 plotY = 0;
             }
             maxSchematicHeight = plotY + plotSchemHeight;
@@ -296,20 +296,15 @@ public class HybridPlotWorld extends ClassicPlotWorld {
                     // Road is the lowest schematic. Normalize plotY to it.
                     if (Settings.Schematics.PASTE_ON_TOP) {
                         plotY = PLOT_HEIGHT - getMinGenHeight();
-                    } else {
-                        plotY = getMinBuildHeight() - getMinGenHeight();
                     }
                 }
             } else if (!Settings.Schematics.PASTE_ROAD_ON_TOP) {
-                if (SCHEM_Y == getMinGenHeight()) { // Only possible if plot schematic is enabled
-                    // Plot is still the lowest schematic, normalize roadY to it
-                    roadY = getMinBuildHeight() - getMinGenHeight();
-                } else if (schematic3 != null) {
-                    SCHEM_Y = getMinBuildHeight();
-                    roadY = 0;// Road is the lowest schematic
+                roadY = 0;
+                SCHEM_Y = getMinGenHeight();
+                if (schematic3 != null) {
                     if (Settings.Schematics.PASTE_ON_TOP) {
                         // Road is the lowest schematic. Normalize plotY to it.
-                        plotY = PLOT_HEIGHT - getMinBuildHeight();
+                        plotY = PLOT_HEIGHT - SCHEM_Y;
                     }
                     maxSchematicHeight = Math.max(maxSchematicHeight, plotY + plotSchemHeight);
                 }

Core/src/main/java/com/plotsquared/core/generator/HybridUtils.java

@@ -529,7 +529,7 @@ public class HybridUtils {
                 Math.min(plotworld.PLOT_HEIGHT, Math.min(plotworld.WALL_HEIGHT, plotworld.ROAD_HEIGHT)) : plotworld.ROAD_HEIGHT;
         int sx = bot.getX() - plotworld.ROAD_WIDTH + 1;
         int sz = bot.getZ() + 1;
-        int sy = Settings.Schematics.PASTE_ROAD_ON_TOP ? schemY : plot.getArea().getMinBuildHeight();
+        int sy = Settings.Schematics.PASTE_ROAD_ON_TOP ? schemY : plot.getArea().getMinGenHeight();
         int ex = bot.getX();
         int ez = top.getZ();
         int ey = get_ey(plotworld, queue, sx, ex, sz, ez, sy);