Some users may encounter the abnormal situation that the account can not be logged in when running Warcraft Rumble on MuMu Player 12. The following are the step-to-step solution to this problem.
Step 1: Find the "Browser" icon on the homepage of your emulator, right-click the icon, then click "Details"
Step 2: Click "DISABLE" on the details page to disable the browser, and finally return to Warcraft Rumble to login your account.