diff --git a/internal/web/service/inbound_node.go b/internal/web/service/inbound_node.go
index ec6b1aae5..13acdbb37 100644
--- a/internal/web/service/inbound_node.go
+++ b/internal/web/service/inbound_node.go
@@ -729,6 +729,9 @@ func (s *InboundService) setRemoteTrafficLocked(nodeID int, snap *runtime.Traffi
 		if unmanagedTag(c.Tag) {
 			continue
 		}
+		// This drops the central inbound and its clients' traffic history, so say
+		// so: silent removal is indistinguishable from an inbound never arriving.
+		logger.Warningf("setRemoteTraffic: node %d no longer reports inbound %q (id %d, port %d) — removing it centrally", nodeID, c.Tag, c.Id, c.Port)
 		var goneEmails []string
 		if err := tx.Model(xray.ClientTraffic{}).
 			Where("inbound_id = ?", c.Id).
diff --git a/internal/web/service/inbound_node_sweep_log_test.go b/internal/web/service/inbound_node_sweep_log_test.go
new file mode 100644
index 000000000..b8c0192c1
--- /dev/null
+++ b/internal/web/service/inbound_node_sweep_log_test.go
@@ -0,0 +1,50 @@
+package service
+
+import (
+	"strconv"
+	"strings"
+	"testing"
+
+	"github.com/mhsanaei/3x-ui/v3/internal/database"
+	"github.com/mhsanaei/3x-ui/v3/internal/database/model"
+	"github.com/mhsanaei/3x-ui/v3/internal/logger"
+	"github.com/mhsanaei/3x-ui/v3/internal/web/runtime"
+
+	"github.com/op/go-logging"
+)
+
+// Removing a central inbound also drops its clients' traffic history, so the
+// sweep must name what it removed — a silent drop is undiagnosable in the field.
+func TestNodeSnapshotSweepLogsRemovedInbound(t *testing.T) {
+	logger.InitLogger(logging.WARNING)
+	setupBulkDB(t)
+	nodeID, _ := setupNodeRuntime(t)
+
+	gone := nodeInbound(t, nodeID, 31777, nil)
+	survivor := nodeInbound(t, nodeID, 31778, nil)
+
+	// The snapshot reports only the survivor, so the other row is swept.
+	snap := &runtime.TrafficSnapshot{Inbounds: []*model.Inbound{{
+		Tag: survivor.Tag, Port: survivor.Port, Protocol: model.VLESS, Enable: true,
+		Settings: survivor.Settings,
+	}}}
+	if _, err := (&InboundService{}).setRemoteTrafficLocked(nodeID, snap, false); err != nil {
+		t.Fatalf("setRemoteTrafficLocked: %v", err)
+	}
+
+	var remaining int64
+	if err := database.GetDB().Model(model.Inbound{}).Where("id = ?", gone.Id).Count(&remaining).Error; err != nil {
+		t.Fatalf("count swept inbound: %v", err)
+	}
+	if remaining != 0 {
+		t.Fatalf("fixture did not sweep inbound %d; the log assertion below would be meaningless", gone.Id)
+	}
+
+	want := strconv.Itoa(gone.Id)
+	for _, line := range logger.GetLogs(200, "warning") {
+		if strings.Contains(line, gone.Tag) && strings.Contains(line, want) {
+			return
+		}
+	}
+	t.Fatalf("sweep removed inbound %q (id %d) without naming it in the log", gone.Tag, gone.Id)
+}