Fixed #2427 / Fixed #2429

core/src/mindustry/world/blocks/sandbox/ItemSource.java

@@ -23,6 +23,7 @@ public class ItemSource extends Block{
         group = BlockGroup.transportation;
         configurable = true;
         saveConfig = true;
+        noUpdateDisabled = true;
 
         config(Item.class, (ItemSourceBuild tile, Item item) -> tile.outputItem = item);
         configClear((ItemSourceBuild tile) -> tile.outputItem = null);

core/src/mindustry/world/blocks/sandbox/LiquidSource.java

@@ -24,6 +24,7 @@ public class LiquidSource extends Block{
         configurable = true;
         outputsLiquid = true;
         saveConfig = true;
+        noUpdateDisabled = true;
 
         config(Liquid.class, (LiquidSourceBuild tile, Liquid l) -> tile.source = l);
         configClear((LiquidSourceBuild tile) -> tile.source = null);