you should drop your stuff before poping!

Author: Allmoz

src/main/java/com/simibubi/create/content/contraptions/Contraption.java

@@ -22,6 +22,13 @@
 
 import javax.annotation.Nullable;
 
+import com.simibubi.create.content.logistics.vault.ItemVaultBlockEntity;
+import com.simibubi.create.content.schematics.requirement.ItemRequirement;
+
+import com.simibubi.create.foundation.blockEntity.SmartBlockEntity;
+
+import com.simibubi.create.foundation.item.ItemHelper;
+
 import org.apache.commons.lang3.tuple.MutablePair;
 import org.apache.commons.lang3.tuple.Pair;
 
@@ -94,6 +101,8 @@
 import net.minecraft.network.protocol.game.DebugPackets;
 import net.minecraft.resources.ResourceLocation;
 import net.minecraft.server.level.ServerLevel;
+import net.minecraft.world.Container;
+import net.minecraft.world.Containers;
 import net.minecraft.world.entity.Entity;
 import net.minecraft.world.entity.ai.village.poi.PoiTypes;
 import net.minecraft.world.item.ItemStack;
@@ -1168,6 +1177,20 @@ public void addBlocksToWorld(Level world, StructureTransform transform) {
 					if (targetPos.getY() == world.getMinBuildHeight())
 						targetPos = targetPos.above();
 					world.levelEvent(2001, targetPos, Block.getId(state));
+					if(state.hasBlockEntity()){
+						CompoundTag tag = block.nbt();
+						if(tag != null) {
+							BlockEntity blockEntity = BlockEntity.loadStatic(targetPos, state, tag);
+							if (blockEntity instanceof Container container)
+								Containers.dropContents(world, targetPos, container);
+							else if (blockEntity instanceof ItemVaultBlockEntity vault)
+								ItemHelper.dropContents(world, targetPos, vault.getInventoryOfBlock());
+							else if (blockEntity instanceof SmartBlockEntity sbe){
+								sbe.setLevel(world);
+								sbe.destroy();
+							}
+						}
+					}
 					Block.dropResources(state, world, targetPos, null);
 					continue;
 				}