When using the latest version 5.3.5325, if I unlock account or reset password using email verification or sms verification, it will send out 2 emails or 2 sms. Only 1 of the verification code is valid while the other already expired. Why does it generate 2 verification codes or secure link?

This happen only when using Internet Explorer 11 to do the account unlock or password reset. For Chrome and Firefox, it is OK with only 1 email notification.