diff --git a/tapchannel/aux_invoice_manager.go b/tapchannel/aux_invoice_manager.go
index 51b212c59..2df17ebb5 100644
--- a/tapchannel/aux_invoice_manager.go
+++ b/tapchannel/aux_invoice_manager.go
@@ -164,6 +164,13 @@ func (s *AuxInvoiceManager) handleInvoiceAccept(_ context.Context,
 			resp.CancelSet = true
 		}
 
+		return resp, nil
+	} else if !isAssetInvoice(req.Invoice, s) && !req.Invoice.IsKeysend {
+		// If we do have custom records, but the invoice does not
+		// correspond to an asset invoice, we do not settle the invoice.
+		// Since we requested btc we should be receiving btc.
+		resp.CancelSet = true
+
 		return resp, nil
 	}
 
diff --git a/tapchannel/aux_invoice_manager_test.go b/tapchannel/aux_invoice_manager_test.go
index d40d0b580..a6dadc3a5 100644
--- a/tapchannel/aux_invoice_manager_test.go
+++ b/tapchannel/aux_invoice_manager_test.go
@@ -24,9 +24,6 @@ import (
 )
 
 const (
-	// The test channel ID to use across the test cases.
-	testChanID = 1234
-
 	// maxRandomInvoiceValueMSat is the maximum invoice value in mSAT to be
 	// generated by the property based tests.
 	maxRandomInvoiceValueMSat = 100_000_000_000
@@ -52,12 +49,20 @@ var (
 	// The node ID to be used for the RFQ peer.
 	testNodeID = route.Vertex{1, 2, 3}
 
+	// The asset rate value to use across tests.
 	assetRate = big.NewInt(100_000)
 
+	// The asset rate struct based on the assetRate value.
 	testAssetRate = rfqmath.FixedPoint[rfqmath.BigInt]{
 		Coefficient: rfqmath.NewBigInt(assetRate),
 		Scale:       0,
 	}
+
+	// The test RFQ ID to use across tests.
+	testRfqID = dummyRfqID(31)
+
+	// The test RFQ SCID that is derived from testRfqID.
+	testScid = testRfqID.Scid()
 )
 
 // mockRfqManager mocks the interface of the rfq manager required by the aux
@@ -184,6 +189,11 @@ func (m *mockHtlcModifierProperty) HtlcModifier(ctx context.Context,
 			if r.ExitHtlcAmt != res.AmtPaid {
 				m.t.Errorf("AmtPaid != ExitHtlcAmt")
 			}
+		} else if !isAssetInvoice(r.Invoice, m) {
+			if !res.CancelSet {
+				m.t.Errorf("expected cancel set flag")
+			}
+			continue
 		}
 
 		htlcBlob, err := r.WireCustomRecords.Serialize()
@@ -293,7 +303,7 @@ func TestAuxInvoiceManager(t *testing.T) {
 				},
 			},
 			buyQuotes: map[rfq.SerialisedScid]rfqmsg.BuyAccept{
-				testChanID: {
+				testScid: {
 					Peer: testNodeID,
 				},
 			},
@@ -315,7 +325,7 @@ func TestAuxInvoiceManager(t *testing.T) {
 				},
 			},
 			buyQuotes: map[rfq.SerialisedScid]rfqmsg.BuyAccept{
-				testChanID: {
+				testScid: {
 					Peer: testNodeID,
 				},
 			},
@@ -335,7 +345,7 @@ func TestAuxInvoiceManager(t *testing.T) {
 								dummyAssetID(1),
 								3,
 							),
-						}, fn.Some(dummyRfqID(31)),
+						}, fn.Some(testRfqID),
 					),
 				},
 			},
@@ -345,7 +355,7 @@ func TestAuxInvoiceManager(t *testing.T) {
 				},
 			},
 			buyQuotes: rfq.BuyAcceptMap{
-				fn.Ptr(dummyRfqID(31)).Scid(): {
+				testScid: {
 					Peer: testNodeID,
 					AssetRate: rfqmsg.NewAssetRate(
 						testAssetRate, time.Now(),
@@ -368,7 +378,7 @@ func TestAuxInvoiceManager(t *testing.T) {
 								dummyAssetID(1),
 								4,
 							),
-						}, fn.Some(dummyRfqID(31)),
+						}, fn.Some(testRfqID),
 					),
 					ExitHtlcAmt: 1234,
 				},
@@ -379,7 +389,7 @@ func TestAuxInvoiceManager(t *testing.T) {
 				},
 			},
 			buyQuotes: rfq.BuyAcceptMap{
-				fn.Ptr(dummyRfqID(31)).Scid(): {
+				testScid: {
 					Peer: testNodeID,
 					AssetRate: rfqmsg.NewAssetRate(
 						testAssetRate, time.Now(),
@@ -387,6 +397,31 @@ func TestAuxInvoiceManager(t *testing.T) {
 				},
 			},
 		},
+		{
+			name: "btc invoice, custom records",
+			requests: []lndclient.InvoiceHtlcModifyRequest{
+				{
+					Invoice: &lnrpc.Invoice{
+						ValueMsat:   10_000_000,
+						PaymentAddr: []byte{1, 1, 1},
+					},
+					WireCustomRecords: newWireCustomRecords(
+						t, []*rfqmsg.AssetBalance{
+							rfqmsg.NewAssetBalance(
+								dummyAssetID(1),
+								4,
+							),
+						}, fn.Some(testRfqID),
+					),
+					ExitHtlcAmt: 1234,
+				},
+			},
+			responses: []lndclient.InvoiceHtlcModifyResponse{
+				{
+					CancelSet: true,
+				},
+			},
+		},
 	}
 
 	for _, testCase := range testCases {
@@ -761,8 +796,8 @@ func testRouteHints() []*lnrpc.RouteHint {
 					NodeId: route.Vertex{1, 1, 1}.String(),
 				},
 				{
-					ChanId: 1234,
-					NodeId: route.Vertex{1, 2, 3}.String(),
+					ChanId: uint64(testScid),
+					NodeId: testNodeID.String(),
 				},
 			},
 		},