diff --git a/tests/Server/ZB.MOM.WW.OtOpcUa.Runtime.Tests/VirtualTags/VirtualTagHostActorTests.cs b/tests/Server/ZB.MOM.WW.OtOpcUa.Runtime.Tests/VirtualTags/VirtualTagHostActorTests.cs
index 3b759cf70..9b0d669b1 100644
--- a/tests/Server/ZB.MOM.WW.OtOpcUa.Runtime.Tests/VirtualTags/VirtualTagHostActorTests.cs
+++ b/tests/Server/ZB.MOM.WW.OtOpcUa.Runtime.Tests/VirtualTags/VirtualTagHostActorTests.cs
@@ -147,9 +147,16 @@ public sealed class VirtualTagHostActorTests : RuntimeActorTestBase
         mux.ExpectMsg<DependencyMuxActor.UnregisterInterest>(TimeSpan.FromSeconds(5));
 
         // Re-apply with the same plan — host should see vt-1 absent from _children and spawn fresh.
-        host.Tell(new VirtualTagHostActor.ApplyVirtualTags(plan));
-        var reg2 = mux.ExpectMsg<DependencyMuxActor.RegisterInterest>(TimeSpan.FromSeconds(5));
-        reg2.TagRefs.ShouldContain("a");
+        // The test saw the child die, but the host's own Terminated (which prunes _children) can land
+        // after a single re-apply, which then still sees vt-1 as present and spawns nothing
+        // (lmxopcua#769: this raced ~1 in 6 full runs). Re-apply until the host has pruned it.
+        DependencyMuxActor.RegisterInterest? reg2 = null;
+        AwaitAssert(() =>
+        {
+            host.Tell(new VirtualTagHostActor.ApplyVirtualTags(plan));
+            reg2 = mux.ExpectMsg<DependencyMuxActor.RegisterInterest>(TimeSpan.FromMilliseconds(500));
+        }, TimeSpan.FromSeconds(10), TimeSpan.FromMilliseconds(50));
+        reg2!.TagRefs.ShouldContain("a");
 
         // The new child must be a different actor ref than the one we killed.
         var secondChild = mux.LastSender;