diff --git a/fastpath/debian/changelog b/fastpath/debian/changelog
index 22717401..b7ca2e2b 100644
--- a/fastpath/debian/changelog
+++ b/fastpath/debian/changelog
@@ -1,3 +1,10 @@
+fastpath (0.86) unstable; urgency=medium
+
+  * Mark signal measurements as failed
+  * Disable torsf test via check-in
+
+ -- Arturo Filastò <arturo@ooni.org>  Mon, 25 Mar 2024 12:14:54 +0100
+
 fastpath (0.84) unstable; urgency=medium
 
   * Support ooni_run_link_id
diff --git a/fastpath/fastpath/core.py b/fastpath/fastpath/core.py
index d15367cc..9593324a 100644
--- a/fastpath/fastpath/core.py
+++ b/fastpath/fastpath/core.py
@@ -1353,32 +1353,46 @@ def score_signal(msm: dict) -> dict:
     try:
         # https://github.com/ooni/probe/issues/2344
         tv = g_or(msm, "test_version", "0.0.0")
-        if parse_version(tv) <= parse_version("0.2.3"):
+
+        msmt_start_time = msm.get("measurement_start_time")
+        if msmt_start_time is None:
+            scores["accuracy"] = 0.0
+            return scores
+        start_time = datetime.strptime(msmt_start_time, "%Y-%m-%d %H:%M:%S")
+
+        if tv == "0.2.4":
+            # the breakage here is affecting just v0.2.4 of the test
+            # See https://github.com/ooni/probe/issues/2636
+            # See https://github.com/ooni/probe-cli/pull/1421
+            scores["accuracy"] = 0.0
+            return scores
+
+        if parse_version(tv) <= parse_version("0.2.3") and start_time >= datetime(
+            2023, 11, 7
+        ):
             # https://github.com/ooni/probe/issues/2627
             scores["accuracy"] = 0.0
             return scores
 
-        if parse_version(tv) < parse_version("0.2.2"):
-            start_time = msm.get("measurement_start_time")
-            if start_time is None:
-                scores["accuracy"] = 0.0
-            else:
-                start_time = datetime.strptime(start_time, "%Y-%m-%d %H:%M:%S")
-                if start_time >= datetime(2022, 10, 19):
-                    scores["accuracy"] = 0.0
+        if parse_version(tv) < parse_version("0.2.2") and start_time >= datetime(
+            2022, 10, 19
+        ):
+            scores["accuracy"] = 0.0
+            return scores
 
         # https://github.com/ooni/backend/issues/679
         # engine_version < 3.17.2 and measurement_start_time > 2023-05-02
         annot = g_or(msm, "annotations", {})
         ev = g_or(annot, "engine_version", "0.0.0")
-        if parse_version(ev) < parse_version("3.17.2"):
-            st = g_or(msm, "measurement_start_time", "2023-05-05 00:00:00")
-            start_time = datetime.strptime(st, "%Y-%m-%d %H:%M:%S")
-            if start_time >= datetime(2023, 5, 2):
-                scores["accuracy"] = 0.0
+        if parse_version(ev) < parse_version("3.17.2") and start_time >= datetime(
+            2023, 5, 2
+        ):
+            scores["accuracy"] = 0.0
+            return scores
 
     except Exception:
         scores["accuracy"] = 0.0
+        return scores
 
     st = tk.get("signal_backend_status")
     if st == "ok":