diff --git a/libspinscale b/libspinscale
index 2749d77..42076d6 160000
--- a/libspinscale
+++ b/libspinscale
@@ -1 +1 @@
-Subproject commit 2749d77d651975a54095a2ea023aa3303e584a50
+Subproject commit 42076d6c780a69fb3f645e271adcfb5111c64e0e
diff --git a/smocore/deviceManager/deviceReattacher.cpp b/smocore/deviceManager/deviceReattacher.cpp
index 9c75a27..8fe9b0a 100644
--- a/smocore/deviceManager/deviceReattacher.cpp
+++ b/smocore/deviceManager/deviceReattacher.cpp
@@ -24,8 +24,16 @@ DeviceReattacher::DeviceReattacher(
 
 mrntt::MrnttNonViralPostingInvoker DeviceReattacher::reattachKnownListCReq(
 	[[maybe_unused]] std::exception_ptr &exceptionPtr,
-	[[maybe_unused]] std::function<void()> callback)
+	[[maybe_unused]] std::function<void()> callback,
+	[[maybe_unused]] sscl::co::ExplicitPostTarget postTarget)
 {
+	/**	EXPLANATION:
+	 * DeviceManager attach APIs require the marionette thread; postTarget
+	 * selects where this coroutine runs (mrntt io_context). Completion still
+	 * posts back to the mrntt timer thread via callerIoContext.
+	 */
+	(void)postTarget;
+
 	sscl::MultiOperationResultSet results = co_await
 		parent.attachAllUnattachedDevicesFromKnownListCReq();
 	if (results.nTotal > 0)
@@ -89,7 +97,8 @@ void DeviceReattacher::holdReattachCReq()
 		{
 			sscl::SpinLock::Guard guard(deviceReattacherCanceler.s.lock);
 			reattachOpInFlight = false;
-		}));
+		},
+		sscl::co::ExplicitPostTarget{ioThread->getIoContext()}));
 }
 
 void DeviceReattacher::onTimeout(const boost::system::error_code& error)
diff --git a/smocore/include/deviceManager/deviceReattacher.h b/smocore/include/deviceManager/deviceReattacher.h
index bea42e0..c3a542c 100644
--- a/smocore/include/deviceManager/deviceReattacher.h
+++ b/smocore/include/deviceManager/deviceReattacher.h
@@ -39,7 +39,8 @@ private:
 
 	mrntt::MrnttNonViralPostingInvoker reattachKnownListCReq(
 		std::exception_ptr &exceptionPtr,
-		std::function<void()> callback);
+		std::function<void()> callback,
+		sscl::co::ExplicitPostTarget postTarget);
 
 	DeviceManager &parent;
 	std::shared_ptr<sscl::ComponentThread> ioThread;