Functions are not showing up in Azure Function App

I have deployed an Azure Function App using Bicep and YAML pipeline. Function app uses java as

FUNCTIONS_WORKER_RUNTIME and is hosted on a P1v3 Service Plan.

Problem is that when I deploy functions on Function App, functions do not show up on Overview balde as shown above despite service pipeline runs successfully. I tried to attach Bicep and YAML file but .bicep and .yml extensions are not supported. Kindly help me in resolving this issue.

Here is Bicep code to deploy function App:

@description('Enter name of Integration')
param IntegrationName string

@description('Enter Service Name for KICS Resources')
param ServiceNameKicksMember string

@description('Enter location for your resources')
param Location string

@description('Enter Environment of the resource')
@allowed([
  'Dev'
  'Prod'
])
param Environment string

//Service Plan Sku
param SpSkuName string
param SpSkuTier string

// KeyVault
param KeyVaultName string
param KeyVaultRGName string

// Define the names for resources.
var aiName = toLower('ai-${IntegrationName}-weu-${Environment}')
var funcName = toLower('func-${Environment}')
var appPlanName = toLower('sp-weu-${Environment}')
var lwsName = toLower('lws-${IntegrationName}-weu-${Environment}')
var storageName = toLower('stoweu${Environment}')

// Function App Configurations
param LinuxFxVersion string


resource appInsightsComponents 'Microsoft.Insights/components@2020-02-02-preview' existing = {
  name: aiName
}

resource logAnalyticsWorkspacesqlDbName 'Microsoft.OperationalInsights/workspaces@2022-10-01' existing = {
  name: lwsName
}

resource storageAccount 'Microsoft.Storage/storageAccounts@2023-05-01' = {
  name: storageName
  location: Location
  kind: 'StorageV2'
  sku: {
    name: 'Standard_LRS'
  }
  tags: resourceGroup().tags
}

resource keyVault 'Microsoft.KeyVault/vaults@2021-11-01-preview' existing = {     
  name: KeyVaultName
  scope: resourceGroup(KeyVaultRGName)     
}

resource appServicePlan 'Microsoft.Web/serverfarms@2024-04-01' = {
  name: appPlanName
  location: Location
  properties: {
    reserved: true
  }
  sku: {
    name: SpSkuName
    tier: SpSkuTier
  }
  tags: resourceGroup().tags
  kind: 'linux'
}

resource azureFunction 'Microsoft.Web/sites@2024-04-01' = {
  name: funcName
  location: Location
  kind: 'functionapp'
  identity: {
    type: 'SystemAssigned'
  }
  tags: resourceGroup().tags
  properties: {
    serverFarmId: appServicePlan.id
    httpsOnly: true
    reserved: true
    siteConfig: {
      linuxFxVersion: LinuxFxVersion
      appSettings: [
        {
          name: 'AzureWebJobsStorage'
          value: 'DefaultEndpointsProtocol=https;AccountName=${storageAccount.name};AccountKey=${storageAccount.listKeys().keys[0].value}'
        }
        {
          name: 'WEBSITE_CONTENTAZUREFILECONNECTIONSTRING'
          value: 'DefaultEndpointsProtocol=https;AccountName=${storageAccount.name};AccountKey=${storageAccount.listKeys().keys[0].value}'
        }
        {
          name: 'WEBSITE_CONTENTSHARE'
          value: toLower(funcName)
        }
        {
          name: 'StorageConnection'
          value: 'DefaultEndpointsProtocol=https;AccountName=${storageAccount.name};AccountKey=${storageAccount.listKeys().keys[0].value}'
        }
        {
          name: 'FUNCTIONS_EXTENSION_VERSION'
          value: '~4'
        }
        {
          name: 'APPLICATIONINSIGHTS_CONNECTION_STRING'
          value: appInsightsComponents.properties.ConnectionString
        }
        {
          name: 'ApplicationInsightsAgent_EXTENSION_VERSION'
          value: '~3'
        }
        {
           name: 'APPLICATIONINSIGHTS_ENABLE_AGENT'
           value: 'true'
        }
        {
          name: 'XDT_MicrosoftApplicationInsights_Mode'
          value: 'recommended'
        }
        {
          name: 'FUNCTIONS_WORKER_RUNTIME'
          value: 'java'
        }
        {
          name: 'WEBSITE_RUN_FROM_PACKAGE'
          value: '1'
        }
        
        
      ]
    }
  }
}

Here is YAML file to deploy service/functions. I have removed confidential information.

# Starter pipeline
# Start with a minimal pipeline that you can customize to build and deploy your code.
# Add steps that build, run tests, deploy, and more:
# https://aka.ms/yaml

trigger: none

name: '$(Build.DefinitionName)-$(SourceBranchName)-$(rev:r)'

pool:
  vmImage: ubuntu-latest

stages:
  - stage: 'Build'
    displayName: QTFunctionsApp-CI
    jobs:
      - job: 'Build'
        displayName: 'Build Function App'
        pool:
         vmImage: 'ubuntu-latest'
         demands: npm
         
        steps:
        - task: JavaToolInstaller@1
          inputs:
            versionSpec: '21'
            jdkArchitectureOption: 'x64'
            jdkSourceOption: 'PreInstalled'

        - task: MavenAuthenticate@0
          inputs:
            artifactsFeeds: 'clubmatas-central'

        - task: Maven@4
          inputs:
            azureSubscription: ''
            mavenPomFile: 'AzureFunctions/MemberQueueTriggerFunc/pom.xml'
            goals: 'package'
            publishJUnitResults: true
            testResultsFiles: '**/surefire-reports/TEST-*.xml'
            javaHomeOption: 'JDKVersion'
            mavenVersionOption: 'Default'
            mavenAuthenticateFeed: false
            effectivePomSkip: false
            sonarQubeRunAnalysis: false

        - task: CopyFiles@2
          inputs:
            SourceFolder: '$(system.defaultworkingdirectory)'
            Contents: '**/azure-functions/**'
            TargetFolder: '$(build.artifactstagingdirectory)'
            
        - task: ArchiveFiles@2
          inputs:
            rootFolderOrFile: '$(build.artifactstagingdirectory)'
            includeRootFolder: false
            archiveType: 'zip'
            archiveFile: '$(Build.ArtifactStagingDirectory)/MemberQueueTriggerFunc/$(Build.BuildId).zip'
            replaceExistingArchive: true

        - task: PublishBuildArtifacts@1
          inputs:
            PathtoPublish: '$(Build.ArtifactStagingDirectory)'
            ArtifactName: ''
            publishLocation: 'Container'

  - stage: 'Deploy'
    dependsOn: Build
    condition: succeeded()
    displayName: 'QTMemberFunc-CD'
    jobs:
      - job: 
        displayName: 'Deploy to Dev'
        steps:
        - download: current
          artifact: ''
        
        - script: dir $(System.DefaultWorkingDirectory)
          displayName: 'List contents of agent directory in Deploy stage'
        
        - script: dir $(Pipeline.Workspace)/
          displayName: 'List contents of downloaded artifact'

        - task: AzureFunctionApp@2
          inputs:
            connectedServiceNameARM: ''
            appType: 'functionAppLinux'
            appName: 'func-dev'
            package: '$(Pipeline.Workspace)//**/*.zip'
            deploymentMethod: 'auto'