Fixed #4493 / Fixed #4492 / Fixed #4490

core/src/mindustry/core/NetClient.java

@@ -445,11 +445,16 @@ public class NetClient implements ApplicationListener{
 
             for(int i = 0; i < amount; i++){
                 int pos = input.readInt();
+                short block = input.readShort();
                 Tile tile = world.tile(pos);
                 if(tile == null || tile.build == null){
                     Log.warn("Missing entity at @. Skipping block snapshot.", tile);
                     break;
                 }
+                if(tile.build.block.id != block){
+                    Log.warn("Block ID mismatch at @: @ != @. Skipping block snapshot.", tile, tile.build.block.id, block);
+                    break;
+                }
                 tile.build.readAll(Reads.get(input), tile.build.version());
             }
         }catch(Exception e){

core/src/mindustry/core/NetServer.java

@@ -824,6 +824,7 @@ public class NetServer implements ApplicationListener{
             sent ++;
 
             dataStream.writeInt(entity.pos());
+            dataStream.writeShort(entity.block.id);
             entity.writeAll(Writes.get(dataStream));
 
             if(syncStream.size() > maxSnapshotSize){

core/src/mindustry/type/UnitType.java

@@ -11,6 +11,7 @@ import arc.scene.ui.*;
 import arc.scene.ui.layout.*;
 import arc.struct.*;
 import arc.util.*;
+import mindustry.*;
 import mindustry.ai.types.*;
 import mindustry.annotations.Annotations.*;
 import mindustry.content.*;
@@ -300,7 +301,7 @@ public class UnitType extends UnlockableContent{
         }
 
         if(weapons.isEmpty()){
-            range = maxRange = 0f;
+            range = maxRange = miningRange;
         }
 
         if(mechStride < 0){