diff --git a/tests/AcDream.App.Tests/Streaming/StreamingControllerReadinessTests.cs b/tests/AcDream.App.Tests/Streaming/StreamingControllerReadinessTests.cs
index 9c4c2257..20add222 100644
--- a/tests/AcDream.App.Tests/Streaming/StreamingControllerReadinessTests.cs
+++ b/tests/AcDream.App.Tests/Streaming/StreamingControllerReadinessTests.cs
@@ -394,6 +394,12 @@ public sealed class StreamingControllerReadinessTests
             farBase,
             mesh));
         controller.Tick(0x12, 0x39);
+        // Slice E retains retirement as a cursor-budgeted transaction. A
+        // generous frame can retire Near and resume Far immediately; a frame
+        // that exhausts its elapsed budget resumes on the next Tick. Pin the
+        // converged state rather than wall-clock-dependent frame count.
+        for (int i = 0; i < 4 && appliedBuilds.Count < 2; i++)
+            controller.Tick(0x12, 0x39);
 
         Assert.Equal(1, ensureCalls);
         Assert.DoesNotContain(geometryId, meshes.ReferenceCounts);