Nexus OSS under Istio Ingress with TLS

Hi team!
First of all, thanks for amazing work that you do and your support.I personally appreciate it.

My questions is about using Nexus OSS in AKS (Azure Kubernetes Cluster) under Istio Ingress(Istio / Ingress) using TLS.
I have attached the screenshot the describes nexus+istio infrastructure.

SO, my problem is that when I use this connection without TLS - Nexus works as expected, you can
login and have all access under admin user.
But once you setup TLS between Istio Ingress and user you stillable to reach UI and login, but admin user doesn’t have any access.

WHat’s wrong?

Thanks in advance