diff --git a/modules/multiplayer/multiplayer_debugger.cpp b/modules/multiplayer/multiplayer_debugger.cpp
index 9b05fa884beb..a4d2aed2d61c 100644
--- a/modules/multiplayer/multiplayer_debugger.cpp
+++ b/modules/multiplayer/multiplayer_debugger.cpp
@@ -239,8 +239,8 @@ void MultiplayerDebugger::RPCProfiler::tick(double p_frame_time, double p_proces
 MultiplayerDebugger::SyncInfo::SyncInfo(MultiplayerSynchronizer *p_sync) {
 	ERR_FAIL_NULL(p_sync);
 	synchronizer = p_sync->get_instance_id();
-	if (p_sync->get_replication_config().is_valid()) {
-		config = p_sync->get_replication_config()->get_instance_id();
+	if (p_sync->get_replication_config_ptr()) {
+		config = p_sync->get_replication_config_ptr()->get_instance_id();
 	}
 	if (p_sync->get_root_node()) {
 		root_node = p_sync->get_root_node()->get_instance_id();
diff --git a/modules/multiplayer/multiplayer_synchronizer.cpp b/modules/multiplayer/multiplayer_synchronizer.cpp
index 233f15c3a4a1..21f1f86dbfcd 100644
--- a/modules/multiplayer/multiplayer_synchronizer.cpp
+++ b/modules/multiplayer/multiplayer_synchronizer.cpp
@@ -441,6 +441,10 @@ List<NodePath> MultiplayerSynchronizer::get_delta_properties(uint64_t p_indexes)
 	return out;
 }
 
+SceneReplicationConfig *MultiplayerSynchronizer::get_replication_config_ptr() const {
+	return replication_config.ptr();
+}
+
 MultiplayerSynchronizer::MultiplayerSynchronizer() {
 	// Publicly visible by default.
 	peer_visibility.insert(0);
diff --git a/modules/multiplayer/multiplayer_synchronizer.h b/modules/multiplayer/multiplayer_synchronizer.h
index 7b77e691d16d..99613de29b5e 100644
--- a/modules/multiplayer/multiplayer_synchronizer.h
+++ b/modules/multiplayer/multiplayer_synchronizer.h
@@ -118,6 +118,7 @@ public:
 
 	List<Variant> get_delta_state(uint64_t p_cur_usec, uint64_t p_last_usec, uint64_t &r_indexes);
 	List<NodePath> get_delta_properties(uint64_t p_indexes);
+	SceneReplicationConfig *get_replication_config_ptr() const;
 
 	MultiplayerSynchronizer();
 };
diff --git a/modules/multiplayer/scene_replication_interface.cpp b/modules/multiplayer/scene_replication_interface.cpp
index fc363ee0f521..c95e4ff9c99d 100644
--- a/modules/multiplayer/scene_replication_interface.cpp
+++ b/modules/multiplayer/scene_replication_interface.cpp
@@ -252,9 +252,9 @@ Error SceneReplicationInterface::on_replication_start(Object *p_obj, Variant p_c
 
 		// Try to apply spawn state (before ready).
 		if (pending_buffer_size > 0) {
-			ERR_FAIL_COND_V(!node || sync->get_replication_config().is_null(), ERR_UNCONFIGURED);
+			ERR_FAIL_COND_V(!node || !sync->get_replication_config_ptr(), ERR_UNCONFIGURED);
 			int consumed = 0;
-			const List<NodePath> props = sync->get_replication_config()->get_spawn_properties();
+			const List<NodePath> props = sync->get_replication_config_ptr()->get_spawn_properties();
 			Vector<Variant> vars;
 			vars.resize(props.size());
 			Error err = MultiplayerAPI::decode_and_decompress_variants(vars, pending_buffer, pending_buffer_size, consumed);
@@ -498,8 +498,8 @@ Error SceneReplicationInterface::_make_spawn_packet(Node *p_node, MultiplayerSpa
 			continue;
 		}
 		ERR_CONTINUE(!sync);
-		ERR_FAIL_COND_V(sync->get_replication_config().is_null(), ERR_BUG);
-		for (const NodePath &prop : sync->get_replication_config()->get_spawn_properties()) {
+		ERR_FAIL_NULL_V(sync->get_replication_config_ptr(), ERR_BUG);
+		for (const NodePath &prop : sync->get_replication_config_ptr()->get_spawn_properties()) {
 			state_props.push_back(prop);
 		}
 		// Ensure the synchronizer has an ID.
@@ -714,7 +714,7 @@ void SceneReplicationInterface::_send_delta(int p_peer, const HashSet<ObjectID>
 	int ofs = 1;
 	for (const ObjectID &oid : p_synchronizers) {
 		MultiplayerSynchronizer *sync = get_id_as<MultiplayerSynchronizer>(oid);
-		ERR_CONTINUE(!sync || !sync->get_replication_config().is_valid() || !_has_authority(sync));
+		ERR_CONTINUE(!sync || !sync->get_replication_config_ptr() || !_has_authority(sync));
 		uint32_t net_id;
 		if (!_verify_synchronizer(p_peer, sync, net_id)) {
 			continue;
@@ -809,7 +809,7 @@ void SceneReplicationInterface::_send_sync(int p_peer, const HashSet<ObjectID> p
 	// This is a lazy implementation, we could optimize much more here with by grouping by replication config.
 	for (const ObjectID &oid : p_synchronizers) {
 		MultiplayerSynchronizer *sync = get_id_as<MultiplayerSynchronizer>(oid);
-		ERR_CONTINUE(!sync || !sync->get_replication_config().is_valid() || !_has_authority(sync));
+		ERR_CONTINUE(!sync || !sync->get_replication_config_ptr() || !_has_authority(sync));
 		if (!sync->update_outbound_sync_time(p_usec)) {
 			continue; // nothing to sync.
 		}
@@ -824,7 +824,7 @@ void SceneReplicationInterface::_send_sync(int p_peer, const HashSet<ObjectID> p
 		int size;
 		Vector<Variant> vars;
 		Vector<const Variant *> varp;
-		const List<NodePath> props = sync->get_replication_config()->get_sync_properties();
+		const List<NodePath> props = sync->get_replication_config_ptr()->get_sync_properties();
 		Error err = MultiplayerSynchronizer::get_state(props, node, vars, varp);
 		ERR_CONTINUE_MSG(err != OK, "Unable to retrieve sync state.");
 		err = MultiplayerAPI::encode_and_compress_variants(varp.ptrw(), varp.size(), nullptr, size);
@@ -883,7 +883,7 @@ Error SceneReplicationInterface::on_sync_receive(int p_from, const uint8_t *p_bu
 			ofs += size;
 			continue;
 		}
-		const List<NodePath> props = sync->get_replication_config()->get_sync_properties();
+		const List<NodePath> props = sync->get_replication_config_ptr()->get_sync_properties();
 		Vector<Variant> vars;
 		vars.resize(props.size());
 		int consumed;