diff --git a/hibernate-core/src/main/java/org/hibernate/collection/spi/AbstractPersistentCollection.java b/hibernate-core/src/main/java/org/hibernate/collection/spi/AbstractPersistentCollection.java
index 62e492af41a6..0aceaf1f35f2 100644
--- a/hibernate-core/src/main/java/org/hibernate/collection/spi/AbstractPersistentCollection.java
+++ b/hibernate-core/src/main/java/org/hibernate/collection/spi/AbstractPersistentCollection.java
@@ -282,7 +282,11 @@ else if ( !session.isConnected() ) {
 				}
 			}
 			else {
-				if ( !session.isTransactionInProgress() ) {
+				/*
+				 Whenever the collection lazy loading is triggered during the loading process,
+				 closing the connection will cause an error when RowProcessingStateStandardImpl#next() will be called.
+				 */
+				if ( !session.isTransactionInProgress() && session.getPersistenceContext().isLoadFinished() ) {
 					session.getJdbcCoordinator().afterTransaction();
 				}
 			}
diff --git a/hibernate-core/src/main/java/org/hibernate/sql/results/graph/collection/internal/AbstractCollectionInitializer.java b/hibernate-core/src/main/java/org/hibernate/sql/results/graph/collection/internal/AbstractCollectionInitializer.java
index 8073013809eb..e5aa8f6a50b6 100644
--- a/hibernate-core/src/main/java/org/hibernate/sql/results/graph/collection/internal/AbstractCollectionInitializer.java
+++ b/hibernate-core/src/main/java/org/hibernate/sql/results/graph/collection/internal/AbstractCollectionInitializer.java
@@ -101,6 +101,11 @@ protected void resolveInstance(RowProcessingState rowProcessingState, boolean is
 
 			if ( loadingEntry != null ) {
 				collectionInstance = loadingEntry.getCollectionInstance();
+				if ( collectionInstance.getOwner() == null ) {
+					parentAccess.registerResolutionListener(
+							owner -> collectionInstance.setOwner( owner )
+					);
+				}
 				return;
 			}
 
@@ -108,6 +113,11 @@ protected void resolveInstance(RowProcessingState rowProcessingState, boolean is
 
 			if ( existing != null ) {
 				collectionInstance = existing;
+				if ( collectionInstance.getOwner() == null ) {
+					parentAccess.registerResolutionListener(
+							owner -> collectionInstance.setOwner( owner )
+					);
+				}
 				return;
 			}