I am trying to upload videos using LinkedIn API V2 and everything is going smoothly without any errors. According to the LinkedIn API, it returns 201. The postResponse resource returns 1. But there is no update on my platform, I don't know which step went wrong? Now there's no clue about troubleshooting at all.Please help. This is my code

<?php
// Example of LinkedIn API video upload and publishing dynamics

//
$accessToken = '{Token}';
$personURN = 'urn:li:person:{URN}'; // URN

//
$videoFilePath = $_FILES['file']['tmp_name'];
$videoFileSize = filesize($videoFilePath);
$videoMimeType = mime_content_type($videoFilePath);

// Step 1: Initialize upload
$initUploadUrl = '';

$initHeaders = [
    'Authorization: Bearer ' . $accessToken,
    'Content-Type: application/json',
    'X-Restli-Protocol-Version: 2.0.0',
    'LinkedIn-Version: 202405' // 
];

$initData = [
    'initializeUploadRequest' => [
        'owner' => $personURN,
        'fileSizeBytes' => $videoFileSize,
        'uploadCaptions' => false,
        'uploadThumbnail' => false
    ]
];

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $initUploadUrl);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($initData));
curl_setopt($ch, CURLOPT_HTTPHEADER, $initHeaders);

$response = curl_exec($ch);
$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);

if ($httpCode !== 200) {
    die('Initialization upload failed: ' . $response);
}

$initResponse = json_decode($response, true);
$uploadUrl = $initResponse['value']['uploadInstructions'][0]['uploadUrl'];
$videoAsset = $initResponse['value']['video'];

// Step 2: Upload video files
$uploadHeaders = [
    'Authorization: Bearer ' . $accessToken,
    'Content-Type: ' . $videoMimeType,
    'X-Restli-Protocol-Version: 2.0.0'
];

$videoFile = fopen($videoFilePath, 'r');

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $uploadUrl);
curl_setopt($ch, CURLOPT_PUT, true);
curl_setopt($ch, CURLOPT_INFILE, $videoFile);
curl_setopt($ch, CURLOPT_INFILESIZE, $videoFileSize);
curl_setopt($ch, CURLOPT_HTTPHEADER, $uploadHeaders);

$uploadResponse = curl_exec($ch);
$uploadHttpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);

fclose($videoFile);

if ($uploadHttpCode !== 201 && $uploadHttpCode !== 200) {
    die('Video upload failed: ' . $uploadResponse);
}

// Step 3: Create a dynamic that includes a video
$postUrl = '';

$postData = [
    'author' => $personURN,
    'commentary' => 'This is the dynamic description text of my video', // describe
    'visibility' => 'PUBLIC', // PUBLIC, CONNECTIONS
    'distribution' => [
        'feedDistribution' => 'MAIN_FEED',
        'targetEntities' => [],
        'thirdPartyDistributionChannels' => []
    ],
    'content' => [
        'media' => [
            'title' => 'My video title',
            'id' => $videoAsset
        ]
    ],
    'lifecycleState' => 'PUBLISHED',
    'isReshareDisabledByAuthor' => false
];

$postHeaders = [
    'Authorization: Bearer ' . $accessToken,
    'Content-Type: application/json',
    'X-Restli-Protocol-Version: 2.0.0',
    'LinkedIn-Version: 202405'
];

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $postUrl);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($postData));
curl_setopt($ch, CURLOPT_HTTPHEADER, $postHeaders);

$postResponse = curl_exec($ch);
$postHttpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);

curl_close($ch);
print_r($postHttpCode);
print_r($postResponse);
if ($postHttpCode === 201) {
    echo 'Video dynamic release successful!';
} else {
    echo 'Posting dynamic failed: ' . $postResponse;
}
?>

The information returned by the interface is：2011Video dynamic release successful! Why is the platform not displaying? Where did my problem lie?How should I adjust?