@RamakrishnaU5813 When you run a Pega Scenario Test case from the application landing page (either individually or through a test suite), the screen freezes and doesn’t respond. This usually happens because of issues with browser compatibility, missing rules, or incorrect configuration in the testing environment. One common root cause is that the test runner tries to launch the case in the same browser tab, which can lock the UI. Also, some JavaScript errors or pop-up blockers might prevent the test from completing. To fix this, ensure pop-ups are allowed, use a supported browser (like Chrome), and update to the latest Pega version if possible. You can also try running the test in a new window or using the Dev Studio’s Scenario Testing tool instead.