"SSL failure Inner exception. WindHttpSendRequest:12030" when running in Azure

I am working on labeling of documents using MIP SDK 1.7.133. The code is working fine in local machine and IIS (windows). But when I run the labeling code in Azure App Service, I get the following error:

"Message": "An error has occurred.", "ExceptionMessage": "SSL failure Inner exception: [http_exception: 'WinHttpSendRequest: 12030: The connection with the server was terminated abnormally'], CorrelationId=56acdff3-ec61-4723-8bee-21ea49f27334, CorrelationId.Description=PolicyProfile, HttpRequest.Id={6187BC6B-FF2E-419C-BB8D-34B828B5C105}, HttpRequest.SanitizedUrl=https://dataservice.protection.outlook.com/PsorWebService/v1/ClientSyncFile/MipPolicies, NetworkError.Category=SSL", "ExceptionType": "Microsoft.InformationProtection.Exceptions.NetworkException", "StackTrace": " at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()\r\n...

The code before failure:

 public ProtectionManager(ProtectionParameters protectionParameters)
    {
        _appInfo = new ApplicationInfo()
        {
            ApplicationId = protectionParameters.ClientId,
            ApplicationName = protectionParameters.AppName,
            ApplicationVersion = protectionParameters.AppVersion
        };
        _protectionParameters = protectionParameters;
        _authDelegate = new AuthDelegateImplementation(_appInfo, _protectionParameters);
        var path = Path.Combine(
        Directory.GetParent(Path.GetDirectoryName(new Uri(System.Reflection.Assembly.GetExecutingAssembly().CodeBase).LocalPath)).FullName,
        Environment.Is64BitProcess ? "bin\\x64" : "bin\\x86");
        
        MIP.Initialize(MipComponent.File, path);
        
        Identity id = new Identity($"{_appInfo.ApplicationId}@{_protectionParameters.Tenant}");
        
        profile = CreateFileProfile(_appInfo);
        
        engine = CreateFileEngine(id);
    }

    private IFileProfile CreateFileProfile(ApplicationInfo appInfo)
    {
        string appPath = Path.GetDirectoryName(new Uri(System.Reflection.Assembly.GetExecutingAssembly().CodeBase).AbsolutePath);
        mipContext = MIP.CreateMipContext(appInfo, Path.Combine(appPath,"mip_data"), Microsoft.InformationProtection.LogLevel.Trace, null, null);
        // Initialize file profile settings to create/use local state.                
        var profileSettings = new FileProfileSettings(mipContext, CacheStorageType.InMemory, new ConsentDelegateImplementation());            
        var profile = Task.Run(async () => await MIP.LoadFileProfileAsync(profileSettings)).Result;
        return profile;

    }

    private IFileEngine CreateFileEngine(Identity identity)
    {
                 
        var engineSettings = new FileEngineSettings(identity.Email, _authDelegate, "", "en-US")
        {                
            Identity = identity,                                                          
        };            
        **var engine = Task.Run(async () => await profile.AddEngineAsync(engineSettings)).Result;**
        return engine;
    }

Would be glad to hear any thoughts. Thanks.