diff --git a/1.4/Assemblies/PerformanceFish.dll b/1.4/Assemblies/PerformanceFish.dll
index 173c3f4..82634fa 100644
Binary files a/1.4/Assemblies/PerformanceFish.dll and b/1.4/Assemblies/PerformanceFish.dll differ
diff --git a/1.4/Assemblies/PerformanceFish.pdb b/1.4/Assemblies/PerformanceFish.pdb
index 28d623c..b4896ba 100644
Binary files a/1.4/Assemblies/PerformanceFish.pdb and b/1.4/Assemblies/PerformanceFish.pdb differ
diff --git a/1.5/Assemblies/PerformanceFish.dll b/1.5/Assemblies/PerformanceFish.dll
index 894c895..6a61750 100644
Binary files a/1.5/Assemblies/PerformanceFish.dll and b/1.5/Assemblies/PerformanceFish.dll differ
diff --git a/1.5/Assemblies/PerformanceFish.pdb b/1.5/Assemblies/PerformanceFish.pdb
index 79c9c61..4b168e9 100644
Binary files a/1.5/Assemblies/PerformanceFish.pdb and b/1.5/Assemblies/PerformanceFish.pdb differ
diff --git a/Source/PerformanceFish/Hauling/StoreUtilityPrepatches.cs b/Source/PerformanceFish/Hauling/StoreUtilityPrepatches.cs
index 717966d..9cd6e17 100644
--- a/Source/PerformanceFish/Hauling/StoreUtilityPrepatches.cs
+++ b/Source/PerformanceFish/Hauling/StoreUtilityPrepatches.cs
@@ -291,6 +291,9 @@ public sealed class StoreUtilityPrepatches : ClassWithFishPrepatches
 					if (storageGroup != null)
 					{
 						otherGroupMembers = storageGroup.SpawnedMemberCount() - 1;
+						if (otherGroupMembers < 0)
+							goto FixCache;
+						
 						Debug.VerifyStorageGroup(otherGroupMembers, listInPriorityOrder, i, storageGroup);
 						
 						groupsOfPriorityCount -= otherGroupMembers;