diff --git a/packages/taler-harness/src/harness/harness.ts b/packages/taler-harness/src/harness/harness.ts
index b5197afd7..7c54c0c47 100644
--- a/packages/taler-harness/src/harness/harness.ts
+++ b/packages/taler-harness/src/harness/harness.ts
@@ -384,7 +384,11 @@ export class GlobalTestState {
       logger.warn(`could not start process (${command})`, err);
     });
     proc.on("exit", (code, signal) => {
-      logger.warn(`process ${logName} exited ${j2s({ code, signal })}`);
+      if (code == 0 && signal == null) {
+        logger.info(`process ${logName} exited with success`);
+      } else {
+        logger.warn(`process ${logName} exited ${j2s({ code, signal })}`);
+      }
     });
     const stderrLogFileName = this.testDir + `/${logName}-stderr.log`;
     const stderrLog = fs.createWriteStream(stderrLogFileName, {
diff --git a/packages/taler-harness/src/harness/helpers.ts b/packages/taler-harness/src/harness/helpers.ts
index 39d411a46..ece003e1b 100644
--- a/packages/taler-harness/src/harness/helpers.ts
+++ b/packages/taler-harness/src/harness/helpers.ts
@@ -624,7 +624,7 @@ export async function applyTimeTravelV2(
   }
 
   if (s.walletClient) {
-    s.walletClient.call(WalletApiOperation.TestingSetTimetravel, {
+    await s.walletClient.call(WalletApiOperation.TestingSetTimetravel, {
       offsetMs: timetravelOffsetMs,
     });
   }
diff --git a/packages/taler-harness/src/integrationtests/test-payment-expired.ts b/packages/taler-harness/src/integrationtests/test-payment-expired.ts
index e4034108f..4817efba5 100644
--- a/packages/taler-harness/src/integrationtests/test-payment-expired.ts
+++ b/packages/taler-harness/src/integrationtests/test-payment-expired.ts
@@ -20,14 +20,17 @@
 import { WalletApiOperation } from "@gnu-taler/taler-wallet-core";
 import { GlobalTestState, MerchantApiClient } from "../harness/harness.js";
 import {
+  applyTimeTravelV2,
   createSimpleTestkudosEnvironmentV2,
   withdrawViaBankV2,
 } from "../harness/helpers.js";
 import {
   AbsoluteTime,
+  ConfirmPayResultType,
   Duration,
   MerchantContractTerms,
   PreparePayResultType,
+  j2s,
 } from "@gnu-taler/taler-util";
 
 /**
@@ -95,6 +98,33 @@ export async function runPaymentExpiredTest(t: GlobalTestState) {
     preparePayResult.status,
     PreparePayResultType.PaymentPossible,
   );
+
+  await applyTimeTravelV2(
+    Duration.toMilliseconds(Duration.fromSpec({ hours: 1 })),
+    { walletClient, exchange, merchant },
+  );
+
+  const confirmPayResult = await walletClient.call(
+    WalletApiOperation.ConfirmPay,
+    { transactionId: preparePayResult.transactionId },
+  );
+  console.log("confirm pay result:");
+  console.log(j2s(confirmPayResult));
+  t.assertDeepEqual(confirmPayResult.type, ConfirmPayResultType.Pending);
+  await walletClient.call(WalletApiOperation.AbortTransaction, {
+    transactionId: preparePayResult.transactionId,
+  });
+  await walletClient.call(WalletApiOperation.TestingWaitTransactionsFinal, {});
+
+  const bal = await walletClient.call(WalletApiOperation.GetBalances, {});
+  console.log(bal);
+
+  t.assertAmountEquals(bal.balances[0].available, "TESTKUDOS:18.93");
+
+  const txns = await walletClient.call(WalletApiOperation.GetTransactions, {
+    includeRefreshes: true,
+  });
+  console.log(j2s(txns));
 }
 
 runPaymentExpiredTest.suites = ["wallet"];
diff --git a/packages/taler-wallet-core/src/remote.ts b/packages/taler-wallet-core/src/remote.ts
index 89348698e..164f7cfe9 100644
--- a/packages/taler-wallet-core/src/remote.ts
+++ b/packages/taler-wallet-core/src/remote.ts
@@ -65,6 +65,7 @@ export async function createRemoteWallet(
       const ctx: RemoteWallet = {
         makeCoreApiRequest(operation, payload) {
           const id = `req-${nextRequestId}`;
+          nextRequestId += 1;
           const req: CoreApiRequestEnvelope = {
             operation,
             id,
diff --git a/packages/taler-wallet-core/src/wallet.ts b/packages/taler-wallet-core/src/wallet.ts
index 4194ab9eb..f42365c00 100644
--- a/packages/taler-wallet-core/src/wallet.ts
+++ b/packages/taler-wallet-core/src/wallet.ts
@@ -1680,6 +1680,7 @@ async function dispatchRequestInternal<Op extends WalletApiOperation>(
       const req = codecForTestingSetTimetravelRequest().decode(payload);
       setDangerousTimetravel(req.offsetMs);
       ws.workAvailable.trigger();
+      return {};
     }
     // default:
     //  assertUnreachable(operation);