Kubernetes Ingress not reloaded

Hello,
I am having issues with the ingress controller deployment. I removed a domain from my controller configuration and deployed in AKS cluster. Post deployment, the ingress object created is correct but the ingress controller has errors in log saying certificate not found and falling back to fake certificate for all domains (including the one which I deleted). The default certificate in ingress config is set to my custom certificate which exists as a secret. I exec’d into the ingress controller pod and checked nginx.conf. The configuration file also has the correct domains. So, why is the controller looking for certificates of removed domain?