diff --git a/chain_events/listener.go b/chain_events/listener.go
index ff7b5d5a..30b44024 100644
--- a/chain_events/listener.go
+++ b/chain_events/listener.go
@@ -71,6 +71,8 @@ func NewListener(
 		opt(listener)
 	}
 
+	log.Debug(listener)
+
 	return listener
 }
 
@@ -167,6 +169,7 @@ func (l *ListenerImpl) Start() Listener {
 						// Unable to connect to chain, pause system.
 						if l.systemService != nil {
 							entry.Warn("Unable to connect to chain, pausing system")
+							entry.Warn(err)
 							if err := l.systemService.Pause(); err != nil {
 								entry.
 									WithFields(log.Fields{"error": err}).
diff --git a/configs/configs.go b/configs/configs.go
index 331b907d..cab02950 100644
--- a/configs/configs.go
+++ b/configs/configs.go
@@ -150,6 +150,8 @@ type Config struct {
 
 	// Sleep duration in case of service isHalted
 	PauseDuration time.Duration `env:"PAUSE_DURATION" envDefault:"60s"`
+
+	GrpcMaxCallRecvMsgSize int `env:"GRPC_MAX_CALL_RECV_MSG_SIZE" envDefault:"16777216"`
 }
 
 // Parse parses environment variables and flags to a valid Config.
diff --git a/jobs/workerpool.go b/jobs/workerpool.go
index 73776ee8..92d0e370 100644
--- a/jobs/workerpool.go
+++ b/jobs/workerpool.go
@@ -112,6 +112,8 @@ func NewWorkerPool(db Store, capacity uint, workerCount uint, opts ...WorkerPool
 	// Register asynchronous job executor.
 	pool.RegisterExecutor(SendJobStatusJobType, pool.executeSendJobStatus)
 
+	pool.logger.Debug(pool)
+
 	return pool
 }
 
@@ -320,6 +322,7 @@ func (wp *WorkerPoolImpl) startWorkers() {
 					if wallet_errors.IsChainConnectionError(err) {
 						if wp.systemService != nil {
 							entry.Warn("Unable to connect to chain, pausing system")
+							entry.Warn(err)
 							// Unable to connect to chain, pause system.
 							if err := wp.systemService.Pause(); err != nil {
 								entry.
diff --git a/main.go b/main.go
index 0ca7e694..123883ee 100644
--- a/main.go
+++ b/main.go
@@ -74,7 +74,11 @@ func runServer(cfg *configs.Config) {
 
 	// Flow client
 	// TODO: WithInsecure()?
-	fc, err := client.New(cfg.AccessAPIHost, grpc.WithTransportCredentials(insecure.NewCredentials()))
+	fc, err := client.New(
+		cfg.AccessAPIHost,
+		grpc.WithTransportCredentials(insecure.NewCredentials()),
+		grpc.WithDefaultCallOptions(grpc.MaxCallRecvMsgSize(cfg.GrpcMaxCallRecvMsgSize)),
+	)
 	if err != nil {
 		log.Fatal(err)
 	}