We have Build a Landing Page , which is getting sourced from a Report defination , that returns work item. In App studio, in the respective View , we have enable the respective setting so , that , it can be opened as Link to a new tab ( User will be accessing multiple case via this) .

When , we click -Open in New Tab --->Its not opening the case and it is opening the entire portal . When , we tried to copy the Link , we can see the case id is not present . 

We have attached the configuration details .

Can some one pls check and tell us , whether we are missing any thing here ?