diff --git a/changelog/4325.fixed.md b/changelog/4325.fixed.md
new file mode 100644
index 000000000..b87a97bfb
--- /dev/null
+++ b/changelog/4325.fixed.md
@@ -0,0 +1 @@
+- Fixed `SentryMetrics` silently dropping `MetricsFrame`s from `stop_ttfb_metrics` and `stop_processing_metrics`. `SentryMetrics` called the base `FrameProcessorMetrics` implementation but discarded its return value, so `FrameProcessor` never pushed the `MetricsFrame` downstream. This prevented observers (e.g. `UserBotLatencyObserver`, `MetricsLogObserver`) from seeing TTFB and processing metrics for any service using `metrics=SentryMetrics()`. The metrics were still calculated and Sentry transactions still completed — only the downstream frame push was affected.
diff --git a/src/pipecat/processors/metrics/sentry.py b/src/pipecat/processors/metrics/sentry.py
index b043b9058..0484995db 100644
--- a/src/pipecat/processors/metrics/sentry.py
+++ b/src/pipecat/processors/metrics/sentry.py
@@ -97,13 +97,20 @@ class SentryMetrics(FrameProcessorMetrics):
 
         Args:
             end_time: Optional end timestamp override.
+
+        Returns:
+            MetricsFrame produced by the base class, or None if not measuring.
+            Returning the frame is required so ``FrameProcessor.stop_ttfb_metrics``
+            can push it downstream to observers.
         """
-        await super().stop_ttfb_metrics(end_time=end_time)
+        frame = await super().stop_ttfb_metrics(end_time=end_time)
 
         if self._sentry_available and self._ttfb_metrics_tx:
             await self._sentry_queue.put(self._ttfb_metrics_tx)
             self._ttfb_metrics_tx = None
 
+        return frame
+
     async def start_processing_metrics(self, *, start_time: float | None = None):
         """Start tracking frame processing metrics.
 
@@ -126,13 +133,20 @@ class SentryMetrics(FrameProcessorMetrics):
 
         Args:
             end_time: Optional end timestamp override.
+
+        Returns:
+            MetricsFrame produced by the base class, or None if not measuring.
+            Returning the frame is required so ``FrameProcessor.stop_processing_metrics``
+            can push it downstream to observers.
         """
-        await super().stop_processing_metrics(end_time=end_time)
+        frame = await super().stop_processing_metrics(end_time=end_time)
 
         if self._sentry_available and self._processing_metrics_tx:
             await self._sentry_queue.put(self._processing_metrics_tx)
             self._processing_metrics_tx = None
 
+        return frame
+
     async def _sentry_task_handler(self):
         """Background task handler for completing Sentry transactions."""
         running = True