diff --git a/src/main/java/gregtech/common/metatileentities/storage/MetaTileEntityQuantumChest.java b/src/main/java/gregtech/common/metatileentities/storage/MetaTileEntityQuantumChest.java
index ab32ced8cae..6bc0842e3b5 100644
--- a/src/main/java/gregtech/common/metatileentities/storage/MetaTileEntityQuantumChest.java
+++ b/src/main/java/gregtech/common/metatileentities/storage/MetaTileEntityQuantumChest.java
@@ -592,13 +592,17 @@ public ItemStack insertItem(int slot, @Nonnull ItemStack insertedStack, boolean
                 return ItemStack.EMPTY;
             }
 
-            ItemStack exportItems = getExportItems().getStackInSlot(0);
-
             // If there is a virtualized stack and the stack to insert does not match it, do not insert anything
             if (itemsStoredInside > 0L &&
-                    !virtualItemStack.isEmpty() && (
-                    !areItemStackIdentical(virtualItemStack, insertedStack) ||
-                    !areItemStackIdentical(exportItems, insertedStack))) {
+                    !virtualItemStack.isEmpty() &&
+                    !areItemStackIdentical(virtualItemStack, insertedStack)) {
+                return insertedStack;
+            }
+
+            ItemStack exportItems = getExportItems().getStackInSlot(0);
+
+            // if there is an item in the export slot and the inserted stack does not match, do not insert
+            if (!exportItems.isEmpty() && !areItemStackIdentical(exportItems, insertedStack)) {
                 return insertedStack;
             }
 
diff --git a/src/test/java/gregtech/common/metatileentities/storage/QuantumChestTest.java b/src/test/java/gregtech/common/metatileentities/storage/QuantumChestTest.java
index ae51478a28f..1ed28f5ea5e 100644
--- a/src/test/java/gregtech/common/metatileentities/storage/QuantumChestTest.java
+++ b/src/test/java/gregtech/common/metatileentities/storage/QuantumChestTest.java
@@ -101,6 +101,26 @@ public void Test_Stack_In_Slot() {
         }
     }
 
+    @Test
+    public void Test_Export_Checking() {
+        for (var quantumChest : createInstances()) {
+            IItemHandler itemHandler = quantumChest.getCombinedInventory();
+            insertItem(itemHandler, GRAVEL.copy(), false);
+
+            ItemStack export = quantumChest.getExportItems().getStackInSlot(0);
+
+            insertItem(itemHandler, SAND.copy(), false);
+            insertItem(itemHandler, SAND.copy(), false);
+
+            insertItem(itemHandler, GRAVEL.copy(), false);
+
+
+            String reason = "The virtualized stack is not the same as the export slot!";
+            boolean isEqual = ItemStack.areItemsEqual(export, quantumChest.virtualItemStack) && export.getMetadata() == quantumChest.virtualItemStack.getMetadata();
+            assertThat(reason, isEqual, is(true));
+        }
+    }
+
     @Test
     public void Test_Multiple_Insertions() {
         for (var quantumChest : createInstances()) {