diff --git a/akka-cluster-sharding-typed/src/test/scala/akka/cluster/sharding/typed/delivery/ReliableDeliveryShardingSpec.scala b/akka-cluster-sharding-typed/src/test/scala/akka/cluster/sharding/typed/delivery/ReliableDeliveryShardingSpec.scala
index b08721ba18..5870855586 100644
--- a/akka-cluster-sharding-typed/src/test/scala/akka/cluster/sharding/typed/delivery/ReliableDeliveryShardingSpec.scala
+++ b/akka-cluster-sharding-typed/src/test/scala/akka/cluster/sharding/typed/delivery/ReliableDeliveryShardingSpec.scala
@@ -32,8 +32,6 @@ import akka.cluster.typed.Join
 
 object ReliableDeliveryShardingSpec {
   val config = ConfigFactory.parseString("""
-    // temporary on debug to diagnose https://github.com/akka/akka/issues/30664
-    akka.loglevel = debug
     akka.actor.provider = cluster
     akka.remote.classic.netty.tcp.port = 0
     akka.remote.artery.canonical.port = 0
@@ -337,9 +335,6 @@ class ReliableDeliveryShardingSpec
       testKit.stop(shardingProducerController)
     }
 
-    // This test sometimes files on GitHub Actions (https://github.com/akka/akka/issues/30664),
-    // which might be a real issue.
-    // It seems msg-3, which is 'correctly' redelivered once, is sometimes redelivered twice.
     "deliver unconfirmed if ShardingConsumerController is terminated" in {
       // for example if ShardingConsumerController is rebalanced, but no more messages are sent to the entity
       nextId()
@@ -386,8 +381,19 @@ class ReliableDeliveryShardingSpec
       // msg-3 is redelivered
       delivery3b.message should ===(TestConsumer.Job("msg-3"))
       delivery3b.confirmTo ! ConsumerController.Confirmed
-      val delivery4 = consumerProbes(1).receiveMessage()
-      delivery4.message should ===(TestConsumer.Job("msg-4"))
+      val delivery3cor4 = consumerProbes(1).receiveMessage()
+      delivery3cor4.message match {
+        case TestConsumer.Job("msg-3") =>
+          // It is possible the ProducerController re-sends msg-3 again before it has processed its acknowledgement.
+          // If the ConsumerController restarts between sending the acknowledgement and receiving that re-sent msg-3,
+          // it will deliver msg-3 a second time. We then expect msg-4 next:
+          val delivery4 = consumerProbes(1).receiveMessage()
+          delivery4.message should ===(TestConsumer.Job("msg-4"))
+        case TestConsumer.Job("msg-4") =>
+        // OK!
+        case other =>
+          throw new MatchError(other)
+      }
 
       // redeliver also when no more messages are sent
       consumerProbes(1).stop()