From 4d53f0735dba2e6c44cdf5e95d802d2a81716bf6 Mon Sep 17 00:00:00 2001
From: Eric Allam <eallam@icloud.com>
Date: Thu, 4 Dec 2025 13:23:07 +0000
Subject: [PATCH] fix(engine): prevent overriding a queue concurrency limit
 resuming a paused queue

---
 apps/webapp/app/v3/services/concurrencySystem.server.ts | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/apps/webapp/app/v3/services/concurrencySystem.server.ts b/apps/webapp/app/v3/services/concurrencySystem.server.ts
index f151e98515..1a34fd61f2 100644
--- a/apps/webapp/app/v3/services/concurrencySystem.server.ts
+++ b/apps/webapp/app/v3/services/concurrencySystem.server.ts
@@ -173,6 +173,11 @@ function resetQueueConcurrencyLimit(db: PrismaClientOrTransaction, queue: TaskQu
 }
 
 function syncQueueConcurrencyToEngine(environment: AuthenticatedEnvironment, queue: TaskQueue) {
+  if (queue.paused) {
+    // Queue is paused, don't update Redis limits - keep at 0
+    return okAsync(queue);
+  }
+
   if (typeof queue.concurrencyLimit === "number") {
     return fromPromise(
       updateQueueConcurrencyLimits(environment, queue.name, queue.concurrencyLimit),