I am facing a strange issue where the navmesh agent is unable to cross a doorway. It used to work earlier but now suddenly it does not anymore. I am unable to find any possible colliders or objects that might be blocking the way. I even tried to disable all the trigger collider in the door way but I am still facing the same issue.
A clear path through the doorway. I have disabled the door.
The navagent used to walk through the doorway to the green dot, but is now stuck at the same position shown in image. I cant even get him to cross the doorway by dragging him in the scene view. It seems like there is no navmesh here, but the first image shows navmesh surface between the doorway.
I have tried resizing the agent disabling all the colliders etc but could not solve the issue.
Any help would be really appreciated. Thanks!
Edit:
I enabled all the debug settings for the navmesh and it also shows pink walls as seen below



