A tiny fix of the issue #1121

src/Services/Ordering/Ordering.Infrastructure/MediatorExtension.cs

@@ -21,12 +21,8 @@ namespace Ordering.Infrastructure
             domainEntities.ToList()
                 .ForEach(entity => entity.Entity.ClearDomainEvents());
 
-            var tasks = domainEvents
-                .Select(async (domainEvent) => {
-                    await mediator.Publish(domainEvent);
-                });
-
-            await Task.WhenAll(tasks);
+            foreach (var domainEvent in domainEvents)
+                await mediator.Publish(domainEvent);
         }
     }
 }