diff --git a/tools/trace_replay/README.md b/tools/trace_replay/README.md
index 5269d078..a82e6f66 100644
--- a/tools/trace_replay/README.md
+++ b/tools/trace_replay/README.md
@@ -25,6 +25,9 @@ The bundled fixtures cover:
 - minecraft-1.21.4-fabric-iris-complementary-reimagined-in-world: captured from Minecraft 1.21.4 Fabric with Sodium,
   Iris, and Complementary Reimagined after entering a singleplayer world.
   ![Minecraft 1.21.4 Fabric Iris Complementary Reimagined in-world golden](fixtures/minecraft-1.21.4-fabric-iris-complementary-reimagined-in-world.0000151297.png)
+- minecraft-1.21.4-fabric-iris-complementary-unbound-in-world: captured from Minecraft 1.21.4 Fabric with Sodium,
+  Iris, and Complementary Unbound after entering a singleplayer world.
+  ![Minecraft 1.21.4 Fabric Iris Complementary Unbound in-world golden](fixtures/minecraft-1.21.4-fabric-iris-complementary-unbound-in-world.0000146559.png)
 - minecraft-1.21.4-fabric-iris-mellow-in-world: captured from Minecraft 1.21.4 Fabric with Sodium, Iris, and Mellow
   after entering a singleplayer world.
   ![Minecraft 1.21.4 Fabric Iris Mellow in-world golden](fixtures/minecraft-1.21.4-fabric-iris-mellow-in-world.0000096143.png)
diff --git a/tools/trace_replay/fixtures/minecraft-1.21.4-fabric-iris-complementary-unbound-in-world.0000146559.png b/tools/trace_replay/fixtures/minecraft-1.21.4-fabric-iris-complementary-unbound-in-world.0000146559.png
new file mode 100644
index 00000000..f64d99d6
--- /dev/null
+++ b/tools/trace_replay/fixtures/minecraft-1.21.4-fabric-iris-complementary-unbound-in-world.0000146559.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:ff6c621639315831c06ae919190594a749e7fb5f812a030f4b2f2f5f57fe8288
+size 736491
diff --git a/tools/trace_replay/fixtures/minecraft-1.21.4-fabric-iris-complementary-unbound-in-world.tgz b/tools/trace_replay/fixtures/minecraft-1.21.4-fabric-iris-complementary-unbound-in-world.tgz
new file mode 100644
index 00000000..cb99d9a6
--- /dev/null
+++ b/tools/trace_replay/fixtures/minecraft-1.21.4-fabric-iris-complementary-unbound-in-world.tgz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:38ec3c4fc9c95535edc4810c306b1fd217aed5c70a0a75de03b6909e172a785e
+size 9376968