Fixed #6843

core/src/mindustry/world/blocks/distribution/DirectionLiquidBridge.java

@@ -76,6 +76,10 @@ public class DirectionLiquidBridge extends DirectionBridge{
 
         @Override
         public boolean acceptLiquid(Building source, Liquid liquid){
+            var link = findLink();
+            //only accept if there's an output point, or it comes from a link
+            if(link == null && !(source instanceof DirectionBridgeBuild b && b.findLink() == this)) return false;
+
             int rel = this.relativeToEdge(source.tile);
 
             return

core/src/mindustry/world/blocks/distribution/Duct.java

@@ -75,7 +75,7 @@ public class Duct extends Block implements Autotiler{
             || ((!otherblock.rotatedOutput(otherx, othery) && Edges.getFacingEdge(otherblock, otherx, othery, tile) != null &&
             Edges.getFacingEdge(otherblock, otherx, othery, tile).relativeTo(tile) == rotation) ||
             //basically the only change here is that it treats overflow ducts specially, since they're... weird
-            ((otherblock.rotatedOutput(otherx, othery) || otherblock instanceof OverflowDuct) && Point2.equals(otherx + Geometry.d4(otherrot).x, othery + Geometry.d4(otherrot).y, tile.x, tile.y)));
+            ((otherblock.rotatedOutput(otherx, othery)) && Point2.equals(otherx + Geometry.d4(otherrot).x, othery + Geometry.d4(otherrot).y, tile.x, tile.y)));
     }
 
     @Override
@@ -175,7 +175,7 @@ public class Duct extends Block implements Autotiler{
             return current == null && items.total() == 0 &&
                 (armored ?
                     //armored acceptance
-                    ((source.block.rotate && source.front() == this && source.block.hasItems) || Edges.getFacingEdge(source.tile(), tile).relativeTo(tile) == rotation) :
+                    ((source.block.rotate && source.front() == this && source.block.hasItems && (source.block instanceof Duct)) || Edges.getFacingEdge(source.tile(), tile).relativeTo(tile) == rotation) :
                     //standard acceptance - do not accept from front
                     !(source.block.rotate && next == source) && Math.abs(Edges.getFacingEdge(source.tile, tile).relativeTo(tile.x, tile.y) - rotation) != 2
                 );

core/src/mindustry/world/blocks/production/HeatCrafter.java

@@ -67,8 +67,9 @@ public class HeatCrafter extends GenericCrafter{
         }
 
         @Override
-        public float getProgressIncrease(float base){
-            return super.getProgressIncrease(base) * efficiencyScale();
+        public void updateEfficiencyMultiplier(){
+            efficiency *= efficiencyScale();
+            potentialEfficiency *= efficiencyScale();
         }
 
         public float efficiencyScale(){