diff --git a/src/main/java/com/minecolonies/api/colony/requestsystem/resolver/IRequestResolver.java b/src/main/java/com/minecolonies/api/colony/requestsystem/resolver/IRequestResolver.java
index b90ad1332c0..78c7ac780c2 100755
--- a/src/main/java/com/minecolonies/api/colony/requestsystem/resolver/IRequestResolver.java
+++ b/src/main/java/com/minecolonies/api/colony/requestsystem/resolver/IRequestResolver.java
@@ -134,4 +134,10 @@ default int getSuitabilityMetric(@NotNull final IRequestManager manager, @NotNul
      * @return The priority of this resolver.
      */
     int getPriority();
+
+    /**
+     * If this resolver has valid data in it.
+     * @return true if so.
+     */
+    boolean isValid();
 }
\ No newline at end of file
diff --git a/src/main/java/com/minecolonies/core/colony/requestsystem/data/StandardRequestResolversIdentitiesDataStore.java b/src/main/java/com/minecolonies/core/colony/requestsystem/data/StandardRequestResolversIdentitiesDataStore.java
index 1f8f091559c..eb2b37565c2 100755
--- a/src/main/java/com/minecolonies/core/colony/requestsystem/data/StandardRequestResolversIdentitiesDataStore.java
+++ b/src/main/java/com/minecolonies/core/colony/requestsystem/data/StandardRequestResolversIdentitiesDataStore.java
@@ -17,13 +17,11 @@
 import net.minecraft.nbt.ListTag;
 import net.minecraft.nbt.Tag;
 import net.minecraft.network.FriendlyByteBuf;
-import net.minecraft.util.Tuple;
 
 import org.jetbrains.annotations.NotNull;
 
 import java.util.HashMap;
 import java.util.Map;
-import java.util.stream.Collectors;
 
 import static com.minecolonies.api.util.constant.NbtTagConstants.*;
 
@@ -118,15 +116,18 @@ public StandardRequestResolversIdentitiesDataStore deserialize(@NotNull final IF
         {
             final IToken<?> token = controller.deserialize(nbt.getCompound(TAG_TOKEN));
             final ListTag list = nbt.getList(TAG_LIST, Tag.TAG_COMPOUND);
+            final BiMap<IToken<?>, IRequestResolver<?>> biMap = HashBiMap.create();
 
-            final Map<IToken<?>, IRequestResolver<?>> map = NBTUtils.streamCompound(list).map(CompoundTag -> {
-                final IToken<?> id = controller.deserialize(CompoundTag.getCompound(TAG_TOKEN));
-                final IRequestResolver<?> resolver = controller.deserialize(CompoundTag.getCompound(TAG_RESOLVER));
-
-                return new Tuple<IToken<?>, IRequestResolver<?>>(id, resolver);
-            }).collect(Collectors.toMap((Tuple<IToken<?>, IRequestResolver<?>> t) -> t.getA(), (Tuple<IToken<?>, IRequestResolver<?>> t) -> t.getB()));
-
-            final BiMap<IToken<?>, IRequestResolver<?>> biMap = HashBiMap.create(map);
+            for (int i = 0; i < list.size(); i++)
+            {
+                final CompoundTag mapCompound = list.getCompound(i);
+                final IToken<?> id = controller.deserialize(mapCompound.getCompound(TAG_TOKEN));
+                final IRequestResolver<?> resolver = controller.deserialize(mapCompound.getCompound(TAG_RESOLVER));
+                if (resolver.isValid())
+                {
+                    biMap.put(id, resolver);
+                }
+            }
 
             return new StandardRequestResolversIdentitiesDataStore(token, biMap);
         }
diff --git a/src/main/java/com/minecolonies/core/colony/requestsystem/resolvers/DeliverymenRequestResolver.java b/src/main/java/com/minecolonies/core/colony/requestsystem/resolvers/DeliverymenRequestResolver.java
index 44418f55887..2b0ecb5b1cc 100644
--- a/src/main/java/com/minecolonies/core/colony/requestsystem/resolvers/DeliverymenRequestResolver.java
+++ b/src/main/java/com/minecolonies/core/colony/requestsystem/resolvers/DeliverymenRequestResolver.java
@@ -170,4 +170,11 @@ public MutableComponent getRequesterDisplayName(
     {
         return Component.translatable(TranslationConstants.COM_MINECOLONIES_COREMOD_JOB_DELIVERYMAN);
     }
+
+    @Override
+    public boolean isValid()
+    {
+        // Always valid
+        return true;
+    }
 }
diff --git a/src/main/java/com/minecolonies/core/colony/requestsystem/resolvers/StandardPlayerRequestResolver.java b/src/main/java/com/minecolonies/core/colony/requestsystem/resolvers/StandardPlayerRequestResolver.java
index 3d59abcea9f..3cdc768b6dd 100755
--- a/src/main/java/com/minecolonies/core/colony/requestsystem/resolvers/StandardPlayerRequestResolver.java
+++ b/src/main/java/com/minecolonies/core/colony/requestsystem/resolvers/StandardPlayerRequestResolver.java
@@ -227,4 +227,11 @@ public void setAllAssignedRequests(final Set<IToken<?>> assignedRequests)
         this.assignedRequests.clear();
         this.assignedRequests.addAll(assignedRequests);
     }
+
+    @Override
+    public boolean isValid()
+    {
+        // Always valid
+        return true;
+    }
 }
diff --git a/src/main/java/com/minecolonies/core/colony/requestsystem/resolvers/StandardRetryingRequestResolver.java b/src/main/java/com/minecolonies/core/colony/requestsystem/resolvers/StandardRetryingRequestResolver.java
index 331119eddf1..3f6a499d13f 100755
--- a/src/main/java/com/minecolonies/core/colony/requestsystem/resolvers/StandardRetryingRequestResolver.java
+++ b/src/main/java/com/minecolonies/core/colony/requestsystem/resolvers/StandardRetryingRequestResolver.java
@@ -306,4 +306,11 @@ public void onColonyUpdate(@NotNull final IRequestManager manager, @NotNull fina
               }
           });
     }
+
+    @Override
+    public boolean isValid()
+    {
+        // Always valid
+        return true;
+    }
 }
diff --git a/src/main/java/com/minecolonies/core/colony/requestsystem/resolvers/WarehouseConcreteRequestResolver.java b/src/main/java/com/minecolonies/core/colony/requestsystem/resolvers/WarehouseConcreteRequestResolver.java
index 0c72e4384e6..a78cef0735a 100755
--- a/src/main/java/com/minecolonies/core/colony/requestsystem/resolvers/WarehouseConcreteRequestResolver.java
+++ b/src/main/java/com/minecolonies/core/colony/requestsystem/resolvers/WarehouseConcreteRequestResolver.java
@@ -69,4 +69,11 @@ protected boolean internalCanResolve(final List<TileEntityWareHouse> wareHouses,
         }
         return false;
     }
+
+    @Override
+    public boolean isValid()
+    {
+        // Always valid
+        return true;
+    }
 }
diff --git a/src/main/java/com/minecolonies/core/colony/requestsystem/resolvers/core/AbstractBuildingDependentRequestResolver.java b/src/main/java/com/minecolonies/core/colony/requestsystem/resolvers/core/AbstractBuildingDependentRequestResolver.java
index 1a35a6f5121..d42e726681a 100755
--- a/src/main/java/com/minecolonies/core/colony/requestsystem/resolvers/core/AbstractBuildingDependentRequestResolver.java
+++ b/src/main/java/com/minecolonies/core/colony/requestsystem/resolvers/core/AbstractBuildingDependentRequestResolver.java
@@ -64,4 +64,11 @@ public void resolveRequest(@NotNull final IRequestManager manager, @NotNull fina
     }
 
     public abstract void resolveForBuilding(@NotNull final IRequestManager manager, @NotNull final IRequest<? extends R> request, @NotNull final AbstractBuilding building);
+
+    @Override
+    public boolean isValid()
+    {
+        // Always valid.
+        return true;
+    }
 }
diff --git a/src/main/java/com/minecolonies/core/colony/requestsystem/resolvers/core/AbstractCraftingProductionResolver.java b/src/main/java/com/minecolonies/core/colony/requestsystem/resolvers/core/AbstractCraftingProductionResolver.java
index e5d75ce43f6..1d7aa82ae20 100755
--- a/src/main/java/com/minecolonies/core/colony/requestsystem/resolvers/core/AbstractCraftingProductionResolver.java
+++ b/src/main/java/com/minecolonies/core/colony/requestsystem/resolvers/core/AbstractCraftingProductionResolver.java
@@ -261,4 +261,10 @@ public void resolveForBuilding(@NotNull final IRequestManager manager, @NotNull
 
         manager.updateRequestState(request.getId(), RequestState.RESOLVED);
     }
+
+    @Override
+    public boolean isValid()
+    {
+        return jobEntry != null;
+    }
 }
diff --git a/src/main/java/com/minecolonies/core/colony/requestsystem/resolvers/core/AbstractCraftingRequestResolver.java b/src/main/java/com/minecolonies/core/colony/requestsystem/resolvers/core/AbstractCraftingRequestResolver.java
index cb521886c68..d06d76e6181 100755
--- a/src/main/java/com/minecolonies/core/colony/requestsystem/resolvers/core/AbstractCraftingRequestResolver.java
+++ b/src/main/java/com/minecolonies/core/colony/requestsystem/resolvers/core/AbstractCraftingRequestResolver.java
@@ -369,4 +369,10 @@ public void resolveForBuilding(@NotNull final IRequestManager manager, @NotNull
     {
         manager.updateRequestState(request.getId(), RequestState.RESOLVED);
     }
+
+    @Override
+    public boolean isValid()
+    {
+        return jobEntry != null;
+    }
 }
diff --git a/src/main/java/com/minecolonies/core/colony/requestsystem/resolvers/core/AbstractWarehouseRequestResolver.java b/src/main/java/com/minecolonies/core/colony/requestsystem/resolvers/core/AbstractWarehouseRequestResolver.java
index 9ce378289b3..8652aeb85dd 100755
--- a/src/main/java/com/minecolonies/core/colony/requestsystem/resolvers/core/AbstractWarehouseRequestResolver.java
+++ b/src/main/java/com/minecolonies/core/colony/requestsystem/resolvers/core/AbstractWarehouseRequestResolver.java
@@ -325,4 +325,11 @@ public int getPriority()
     {
         return CONST_WAREHOUSE_RESOLVER_PRIORITY;
     }
+
+    @Override
+    public boolean isValid()
+    {
+        // Always valid
+        return true;
+    }
 }