Changes are not reflecting in azure app service after deploying via azure devops pipeline

I have a CI/CD pipeline in the Azure DevOps pipeline that deploys the app into the Azure App Service. Both the build and release pipelines are executing without any errors. Before some days, the deployed changes were working fine but now the changes are not reflecting even though the pipeline is executing without any errors.

Release pipeline definition: https://prnt.sc/UE1039_bI6Tz

While analyzing the release pipeline, in the 'Deploy azure app service' task it shows, Total changes: 0 (0 added, 0 deleted, 0 updated, 0 parameters changed

build pipeline debug log file: https://drive.google.com/drive/folders/1ReX_rCuqANfvmFrfHb7es-CiU7GxDEPf?usp=share_link

release pipeline debug log file: https://drive.google.com/file/d/1xrokn_itGWMKqcKRMIRf-OigRhJOHvVp/view?usp=share_link

I checked the artifact created in build pipeline and the changes are there in artifact. But in the release pipeline the changes are not refelected. I checked in the kudu console and the changes are not there also.

When I manually deploy the changes to the app services, they are successfully deployed and the changes are reflected. I don't know what happens behind the scene.

Can anyone please guide me on this? Thanks!

I need the changes to be reflected in the azure app service deployed via the azure DevOps release pipeline.