diff --git a/src/AcDream.App/Net/LiveSessionController.cs b/src/AcDream.App/Net/LiveSessionController.cs
index e6ccb422..82bab1ad 100644
--- a/src/AcDream.App/Net/LiveSessionController.cs
+++ b/src/AcDream.App/Net/LiveSessionController.cs
@@ -342,6 +342,8 @@ internal sealed class LiveSessionController
                 catch (Exception tickError)
                 {
                     Exception error = StopAfterFailure(tickError);
+                    if (ReferenceEquals(error, tickError))
+                        throw;
                     throw error;
                 }
             });
diff --git a/tests/AcDream.App.Tests/Net/LiveSessionControllerTests.cs b/tests/AcDream.App.Tests/Net/LiveSessionControllerTests.cs
index 4b4539fc..91883825 100644
--- a/tests/AcDream.App.Tests/Net/LiveSessionControllerTests.cs
+++ b/tests/AcDream.App.Tests/Net/LiveSessionControllerTests.cs
@@ -805,11 +805,16 @@ public sealed class LiveSessionControllerTests
         controller.Start(LiveOptions(), host);
         WorldSession session = operations.Sessions[0];
 
-        Assert.Throws<InvalidOperationException>(controller.Tick);
+        InvalidOperationException error =
+            Assert.Throws<InvalidOperationException>(controller.Tick);
 
         Assert.False(controller.IsInWorld);
         Assert.Null(controller.CurrentSession);
         Assert.Equal(1, operations.DisposeCounts[session]);
+        Assert.Contains(
+            $"{nameof(TestOperations)}.{nameof(TestOperations.Tick)}",
+            error.StackTrace,
+            StringComparison.Ordinal);
     }
 
     [Fact]