XAdES-T timestamp not shown in Word for signed DOCX

Hello POI team,

I’m using Apache POI OOXML version **5.4.1** to sign a DOCX document with XAdES-T. Although the signature is recognised by Microsoft Word (Word shows it as a valid XAdES-T signature), when I inspect the timestamp information in Word the **timestamp details are missing**
Here are the key details:

- POI version: 5.4.1
- JVM / OS: Java 8, Windows 10, MS Word 2016
- In `_xmlsignatures/sig1.xml`, I see `…`.
- In Word: Signature status shows “valid signature”, but when I choose “See the additional siging information...”, I see **No timestamp information available** and **No timestamp authority information available**.

Here my code:
```java
public static byte[] signWithTSA(final byte[] dataToSign) throws IOException, InvalidFormatException, MarshalException, XMLSignatureException, RuntimeException, TransformException, NoSuchAlgorithmException, InvalidKeyException {
SignatureConfig signatureConfig = new SignatureConfig();
signatureConfig.setDigestAlgo(HashAlgorithm.sha256);
signatureConfig.setKey(PKCS12Utils.getPrivateKey());
List certChain = new ArrayList<>();
for (Certificate cert : PKCS12Utils.getCertificateChain()) {
certChain.add((X509Certificate) cert);
}
signatureConfig.setSigningCertificateChain(certChain);
signatureConfig.setExecutionTime(new Date());
signatureConfig.setIncludeEntireCertificateChain(true);
signatureConfig.setCanonicalizationMethod(Canonicalizer.ALGO_ID_C14N_EXCL_OMIT_COMMENTS);
signatureConfig.setXadesCanonicalizationMethod(Canonicalizer.ALGO_ID_C14N_OMIT_COMMENTS);

// XAdES-T
signatureConfig.setTspUrl(Constants.TSA_SERVER);
signatureConfig.setTspRequestPolicy(null);
signatureConfig.setTspOldProtocol(false);
signatureConfig.setTspDigestAlgo(HashAlgorithm.sha256);
signatureConfig.setXadesRole("Owner");
signatureConfig.setSignatureDescription("Test ký dấu thời gian");
signatureConfig.setCommitmentType("Ký dấu thời gian");

signatureConfig.setSignatureFacets(Arrays.asList(
new OOXMLSignatureFacet(),
new KeyInfoSignatureFacet(),
new XAdESSignatureFacet(),
new XAdESXLSignatureFacet()
));

try (OPCPackage pack = OPCPackage.open(new ByteArrayInputStream(dataToSign))) {
SignatureInfo signatureInfo = new SignatureInfo();
signatureInfo.setOpcPackage(pack);
signatureInfo.setSignatureConfig(signatureConfig);
signatureInfo.confirmSignature();

ByteArrayOutputStream out = new ByteArrayOutputStream();
pack.save(out);
return out.toByteArray();
}
}
```

Any suggestions or sample code fragments for making the timestamp details visible in Word?