my right airpod is not charging properly after ios 15.4.1 update

My right airpod is not charging properly after the update. It shows it is always connected to the phone even when it is in the case. And when charging only left AirPod is getting charged. When I receive a call through the phone I am still getting airpods option. I tried unpairing and pairing, cleaned the case thoroughly, restarted my phone but nothing helped. Help me find a solution.