diff --git a/quest/m0/README.md b/quest/m0/README.md
index 684b92f..19208a4 100644
--- a/quest/m0/README.md
+++ b/quest/m0/README.md
@@ -100,7 +100,6 @@ repository.
 - [Web studio](/quest/m0/web.md) - the full studio in wasm on WebGPU and WebCodecs, served from this repository
 - [Virtual camera](/quest/m0/vcam/README.md) - the program or a published scene exposed as a system camera on Linux, Windows, and macOS
 - [Browser sources on the GPU under Mesa](/quest/m0/cef-headless.md) - shared-texture pages paint on Intel and AMD under Wayland, and a page that cannot paint fails loudly
-- [The program reaches a relay on every runner](/quest/m0/relay-test-flake.md) - the relay engine test stops failing the nightly on GitHub's runner
 - [Browser sources make no outside requests](/quest/m0/browser-offline.md) - no component updates, spellcheck downloads, or network time from the helper
 - [moq-studio builds on its own](/quest/m0/studio-builds-alone.md) - `cargo build -p moq-studio` no longer leans on a test dependency's features
 - [Unpublishing a scene ends its broadcast cleanly](/quest/m0/unpublish-clean.md) - viewers get a clean finish, not `Unroutable`, when a scene stops publishing
diff --git a/quest/m0/relay-test-flake.md b/quest/m0/relay-test-flake.md
deleted file mode 100644
index fffe895..0000000
--- a/quest/m0/relay-test-flake.md
+++ /dev/null
@@ -1,20 +0,0 @@
-# [S] The program reaches a relay on every runner
-
-## Goal
-
-`engine::tests::the_program_reaches_a_relay` passes every time on GitHub's
-Ubuntu runner, as it does on the maintainer's hosts, so it never fails the
-nightly before the browser suite runs.
-
-## Plan
-
-From [moq-dev/studio#78](https://github.com/moq-dev/studio/pull/78), picked
-2026-11-07 (maintainer away under /afk, recommended option), m0 by the rule
-that fixes join m0.
-
-In the nightly's Software render job (run 42350943682, attempt 1), the test
-failed with `Stream(NotFound)` before the browser suite ran. It passed 30 of
-30 times on nixos2. Reproduce it, for example under CPU contention or on a
-fresh runner, find which stream is not found and why (a subscribe racing the
-announce is a first suspect), and fix the cause. Never add a retry, sleep,
-or timeout.
diff --git a/rs/moq-studio/src/engine.rs b/rs/moq-studio/src/engine.rs
index f69dbac..c413eab 100644
--- a/rs/moq-studio/src/engine.rs
+++ b/rs/moq-studio/src/engine.rs
@@ -4175,8 +4175,11 @@ mod tests {
 		let (resized, config) = kio::clock::timeout(TIMEOUT, async {
 			loop {
 				let catalog = catalogs.next().await.expect("catalog").expect("a catalog");
+				// The old sizes end one at a time, so a catalog between them can
+				// list the half size alone.
 				if let [(name, config)] = catalog.video.enabled().collect::<Vec<_>>().as_slice()
 					&& **name != video
+					&& *name != half
 				{
 					return ((*name).clone(), (*config).clone());
 				}