diff --git a/contributors/emails/kelsia014@gmail.com b/contributors/emails/kelsia014@gmail.com
new file mode 100644
index 000000000000..09887302545b
--- /dev/null
+++ b/contributors/emails/kelsia014@gmail.com
@@ -0,0 +1 @@
+kelsia14
diff --git a/plugins/platforms/photon/adapter.py b/plugins/platforms/photon/adapter.py
index 8daf743e2bf0..245aab8b2a8e 100644
--- a/plugins/platforms/photon/adapter.py
+++ b/plugins/platforms/photon/adapter.py
@@ -726,6 +726,19 @@ class PhotonAdapter(BasePlatformAdapter):
             )
 
         ctype = content.get("type")
+        if ctype == "text":
+            raw_text = content.get("text") or ""
+            # iMessage emits U+FFFC OBJECT REPLACEMENT CHARACTER as a transient
+            # placeholder for some media bubbles (notably voice notes). Photon
+            # can then deliver the real attachment/voice event immediately
+            # afterwards with a different message id. If we dispatch the
+            # placeholder as a standalone text turn, the subsequent media event
+            # arrives while that turn is active and the gateway sends a bogus
+            # "Interrupting current task" busy ack. Drop placeholder-only text
+            # at the platform boundary; the real media event carries the bytes.
+            if raw_text.strip() == "\ufffc":
+                logger.debug("[photon] ignoring iMessage object-placeholder text event")
+                return
         if ctype == "reaction":
             # Route only tapbacks on messages WE sent — those are implicitly
             # addressed to the bot (feishu precedent: synthetic text event).
diff --git a/tests/plugins/platforms/photon/test_inbound.py b/tests/plugins/platforms/photon/test_inbound.py
index 3531e6f56882..66269ed82844 100644
--- a/tests/plugins/platforms/photon/test_inbound.py
+++ b/tests/plugins/platforms/photon/test_inbound.py
@@ -67,6 +67,24 @@ async def test_dispatch_text_dm(monkeypatch: pytest.MonkeyPatch) -> None:
     assert src.user_id == "+15551234567"
 
 
+@pytest.mark.asyncio
+async def test_dispatch_ignores_imessage_object_placeholder_text(
+    monkeypatch: pytest.MonkeyPatch,
+) -> None:
+    """Voice notes may arrive as U+FFFC placeholder text followed by media.
+
+    Dispatching the placeholder starts a bogus text turn; the real voice event
+    then lands during that turn and triggers the gateway's busy interrupt ack.
+    Drop placeholder-only text so only the actual voice/attachment is processed.
+    """
+    adapter = _make_adapter(monkeypatch)
+    captured = _capture(adapter, monkeypatch)
+
+    await adapter._dispatch_inbound(_dm_event("\ufffc", msg_id="placeholder"))
+
+    assert captured == []
+
+
 @pytest.mark.asyncio
 async def test_dispatch_group_type(monkeypatch: pytest.MonkeyPatch) -> None:
     adapter = _make_adapter(monkeypatch)