fix: packets being sent on BE's in schematic worlds

common/src/main/java/com/railwayteam/railways/mixin/MixinTrackBlockEntity.java

@@ -23,6 +23,7 @@
 import com.railwayteam.railways.multiloader.PlayerSelection;
 import com.railwayteam.railways.registry.CRPackets;
 import com.railwayteam.railways.registry.CRTags;
+import com.simibubi.create.content.schematics.SchematicWorld;
 import com.simibubi.create.content.trains.track.BezierConnection;
 import com.simibubi.create.content.trains.track.TrackBlock;
 import com.simibubi.create.content.trains.track.TrackBlockEntity;
@@ -80,7 +81,8 @@ public void setTrackCasing(@Nullable SlabBlock trackCasing) {
           BlockState blockState = this.level.getBlockState(worldPosition);
           if (blockState.hasProperty(TrackBlock.HAS_BE))
             level.setBlockAndUpdate(worldPosition, blockState.setValue(TrackBlock.HAS_BE, false));
-          CRPackets.PACKETS.sendTo(PlayerSelection.tracking(this), new RemoveBlockEntityPacket(worldPosition));
+          if (!(this.level instanceof SchematicWorld))
+            CRPackets.PACKETS.sendTo(PlayerSelection.tracking(this), new RemoveBlockEntityPacket(worldPosition));
         }
       } else if (trackCasing != null && !isAlternateModel) {
         CasingCollisionUtils.manageTracks((TrackBlockEntity) (Object) this, false);