Hey Varun!
This is a known bug with DevTools in the built-in browser. Another user reported the same class of issue here: DevTools menus broken.
We’re tracking it. Can’t give a timeline yet, but your report helps, especially the details about right-click context menus and the missing close button, which we hadn’t captured before.
For now, the workaround is to use an external browser for anything that needs DevTools (element inspection, console editing, etc.)
Feel free to let me know if you run into anything else!