diff --git a/worldedit-core/src/main/java/com/fastasyncworldedit/core/extent/clipboard/DiskOptimizedClipboard.java b/worldedit-core/src/main/java/com/fastasyncworldedit/core/extent/clipboard/DiskOptimizedClipboard.java
index dc2ba45059..b70a7f9653 100644
--- a/worldedit-core/src/main/java/com/fastasyncworldedit/core/extent/clipboard/DiskOptimizedClipboard.java
+++ b/worldedit-core/src/main/java/com/fastasyncworldedit/core/extent/clipboard/DiskOptimizedClipboard.java
@@ -702,6 +702,9 @@ public BlockState getBlock(int index) {
         try {
             int diskIndex = headerSize + (index << 1);
             char ordinal = byteBuffer.getChar(diskIndex);
+            if (ordinal == BlockTypesCache.ReservedIDs.__RESERVED__) {
+                ordinal = BlockTypesCache.ReservedIDs.AIR;
+            }
             return BlockState.getFromOrdinal(ordinal);
         } catch (IndexOutOfBoundsException ignored) {
         }