Functional - Any company - Partner Login - Upload EOI Form Map fields functionality not working as per expectation

Steps:-
1] Log into the system using valid credentials
2] Search and select company Caiso for hspl on AZURE
3] Click on the Upload EOI form option from Benadmin curtain
4] Click on the Add button.
5] Upload a valid EOI form and click on Map fields

Actual Result:-
No action is performed on click of Map fields

Expected Result:-
Map fields options should be displayed for mapping