Map cannot be completed due to bug in its generation

Hi everyone,

Recently encountered a bug where the map cannot be played because the path is blocking you. As you can see on the screenshots 3/4 of the map are blocked by a wall that you cannot pass. First I thought there was some kind of secret entrance like the buttons in the Crypt maps but no I searched everything and couldn't find any button or secret anything. I think its dued to some kind of map generation bug but I can be wrong.



Imgur link : https://imgur.com/a/YLOeVhx

Would love some feedbacks on this !

Thanks!