diff --git a/autobuild.xml b/autobuild.xml
index 32b10afd4191773e2868af5f3266eb5ad0395233..5d96fdfc50449c813f17e7b7330ca8056927883e 100644
--- a/autobuild.xml
+++ b/autobuild.xml
@@ -3204,9 +3204,9 @@ Copyright (c) 2012, 2014, 2015, 2016 nghttp2 contributors</string>
             <key>archive</key>
             <map>
               <key>hash</key>
-              <string>5ba21b80695975ab1e1b1c79d0f10c10</string>
+              <string>c5ab9d9d7482e48cd76f4bf391900a8c</string>
               <key>url</key>
-              <string>http://automated-builds-secondlife-com.s3.amazonaws.com/ct2/55879/522561/viewer_manager-2.0.539630-darwin64-539630.tar.bz2</string>
+              <string>http://automated-builds-secondlife-com.s3.amazonaws.com/ct2/43369/385585/viewer_manager-2.0.531000-darwin64-531000.tar.bz2</string>
             </map>
             <key>name</key>
             <string>darwin64</string>
@@ -3228,9 +3228,9 @@ Copyright (c) 2012, 2014, 2015, 2016 nghttp2 contributors</string>
             <key>archive</key>
             <map>
               <key>hash</key>
-              <string>0f788eb745fc062ad737824836e48691</string>
+              <string>6b10d7407686d9e12e63576256581e3e</string>
               <key>url</key>
-              <string>http://automated-builds-secondlife-com.s3.amazonaws.com/ct2/55880/522567/viewer_manager-2.0.539630-windows-539630.tar.bz2</string>
+              <string>http://automated-builds-secondlife-com.s3.amazonaws.com/ct2/43370/385592/viewer_manager-2.0.531000-windows-531000.tar.bz2</string>
             </map>
             <key>name</key>
             <string>windows</string>
@@ -3241,7 +3241,7 @@ Copyright (c) 2012, 2014, 2015, 2016 nghttp2 contributors</string>
         <key>source_type</key>
         <string>hg</string>
         <key>version</key>
-        <string>2.0.539630</string>
+        <string>2.0.531000</string>
       </map>
       <key>vlc-bin</key>
       <map>
diff --git a/indra/edit-me-to-trigger-new-build.txt b/indra/edit-me-to-trigger-new-build.txt
index fd40910d9e70d6412e5e9919bb62a2d649c27a7c..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 100644
--- a/indra/edit-me-to-trigger-new-build.txt
+++ b/indra/edit-me-to-trigger-new-build.txt
@@ -1,4 +0,0 @@
-
-
-
-
diff --git a/indra/llmessage/llcoproceduremanager.cpp b/indra/llmessage/llcoproceduremanager.cpp
index a7bd836c4dd9e90ef78283d287e463156ad7e13c..42c19e3b1c8c4991e92a704e41b7fd922918fa07 100644
--- a/indra/llmessage/llcoproceduremanager.cpp
+++ b/indra/llmessage/llcoproceduremanager.cpp
@@ -280,11 +280,14 @@ LLCoprocedurePool::LLCoprocedurePool(const std::string &poolName, size_t size):
     mHTTPPolicy(LLCore::HttpRequest::DEFAULT_POLICY_ID),
     mCoroMapping()
 {
-    // store in our LLTempBoundListener so that when the LLCoprocedurePool is
-    // destroyed, we implicitly disconnect from this LLEventPump
-    mStatusListener = LLEventPumps::instance().obtain("LLApp").listen(
-        poolName,
-        [pendingCoprocs=mPendingCoprocs, poolName](const LLSD& status)
+    try
+    {
+        // store in our LLTempBoundListener so that when the LLCoprocedurePool is
+        // destroyed, we implicitly disconnect from this LLEventPump
+        // Monitores application status
+        mStatusListener = LLEventPumps::instance().obtain("LLApp").listen(
+            poolName + "_pool", // Make sure it won't repeat names from lleventcoro
+            [pendingCoprocs = mPendingCoprocs, poolName](const LLSD& status)
         {
             auto& statsd = status["status"];
             if (statsd.asString() != "running")
@@ -298,6 +301,19 @@ LLCoprocedurePool::LLCoprocedurePool(const std::string &poolName, size_t size):
             }
             return false;
         });
+    }
+    catch (const LLEventPump::DupListenerName &)
+    {
+        // This shounldn't be possible since LLCoprocedurePool is supposed to have unique names,
+        // yet it somehow did happen, as result pools got '_pool' suffix and this catch.
+        //
+        // If this somehow happens again it is better to crash later on shutdown due to pump
+        // not stopping coroutine and see warning in logs than on startup or during login.
+        LL_WARNS("CoProcMgr") << "Attempted to register dupplicate listener name: " << poolName
+                              << "_pool. Failed to start listener." << LL_ENDL;
+
+        llassert(0); // Fix Me! Ignoring missing listener!
+    }
 
     for (size_t count = 0; count < mPoolSize; ++count)
     {