This tutorial is based on BlueStacks version 18.104.22.16863.
You might get issue while logging into BlueStacks account when Korean keyboard is enabled.
When you type in your password, you need to make sure the IME ("A" in English as shown in the image below) is selected. If letter "A" is not there, click on icon present on the task bar and it will change to letter "A". Now enter your gmail password and proceed to the next step by clicking on forward arrow.
If this doesn't work, type your password on any editor (notepad/sticky notes etc.) after toggling to letter "A" , copy the text and paste on password field provided on BlueStacks login screen.
You can add an "English" language keyboard from Control Panel and use it to type in your password on BlueStacks login screen.
Please refer this URL to change keyboard language:
For further details, please contact us at firstname.lastname@example.org.