Misc bugfixes and tweaks

core/src/mindustry/content/UnitTypes.java

@@ -2965,7 +2965,6 @@ public class UnitTypes{
                     }));
 
                     collidesTiles = true;
-                    recoil = 0.5f;
                     backColor = hitColor = Pal.techBlue;
                     frontColor = Color.white;
 

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

@@ -20,6 +20,7 @@ public class Junction extends Block{
         underBullets = true;
         group = BlockGroup.transportation;
         unloadable = false;
+        floating = true;
         noUpdateDisabled = true;
     }
 

core/src/mindustry/world/blocks/liquid/LiquidRouter.java

@@ -14,6 +14,7 @@ public class LiquidRouter extends LiquidBlock{
         solid = false;
         noUpdateDisabled = true;
         canOverdrive = false;
+        floating = true;
     }
 
     @Override

core/src/mindustry/world/blocks/units/UnitCargoLoader.java

@@ -91,7 +91,9 @@ public class UnitCargoLoader extends Block{
 
             if(readUnitId != -1){
                 unit = Groups.unit.getByID(readUnitId);
-                readUnitId = -1;
+                if(unit != null || !net.client()){
+                    readUnitId = -1;
+                }
             }
 
             warmup = Mathf.approachDelta(warmup, efficiency, 1f / 60f);