From b700529c3bdd91de5cd62b6884a59810e1feabce Mon Sep 17 00:00:00 2001
From: jeffrey-signal <jeffrey@signal.org>
Date: Wed, 22 Apr 2026 09:19:01 -0400
Subject: [PATCH] Fix stuck outgoing messages when there a no remaining linked
 devices.

---
 .../signalservice/api/SignalServiceMessageSender.java        | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/lib/libsignal-service/src/main/java/org/whispersystems/signalservice/api/SignalServiceMessageSender.java b/lib/libsignal-service/src/main/java/org/whispersystems/signalservice/api/SignalServiceMessageSender.java
index dc5928a0c8..81a88485fa 100644
--- a/lib/libsignal-service/src/main/java/org/whispersystems/signalservice/api/SignalServiceMessageSender.java
+++ b/lib/libsignal-service/src/main/java/org/whispersystems/signalservice/api/SignalServiceMessageSender.java
@@ -2041,6 +2041,11 @@ public class SignalServiceMessageSender {
           Log.d(TAG, "[sendMessage][" + timestamp + "] Sending a SKDM to " + messages.getDestination() + " for devices: " + messages.getDevices() + (content.getContent().get().dataMessage != null ? " (it's piggy-backing on a DataMessage)" : ""));
         }
 
+        if (messages.getDevices().isEmpty()) {
+          Log.w(TAG, "[sendMessage][" + timestamp + "] Skipping send - no devices with valid sessions (isMultiDevice=" + aciStore.isMultiDevice() + ").");
+          return SendMessageResult.success(recipient, messages.getDevices(), false, false, System.currentTimeMillis() - startTime, content.getContent());
+        }
+
         if (cancelationSignal != null && cancelationSignal.isCanceled()) {
           return SendMessageResult.canceledFailure(recipient);
         }