Can't run the game? Look here!/en

Can't run the game? Look here!

Problem #1: Launcher doesn't start or error messages occur

• Most likely, you don't have Microsoft Net Framework 3.5 or higher. You can download it here
• We also recommend you check whether your antivirus did not damage game files. Delete it or add game folder to exclusions and reinstall the client.
• Please read carefully the following guide and add game folder to windows defender exclusions.
• If nothing helps, you will be able to run the game from main.exe, the only thing that will not work is window minimizing.

Problem #2: Play button doesn't activate

You need to download the latest update patcher and extract it to the game folder, replacing all required files.

Problem #3: Mix.bmd file not found

• Most likely, you have extracted the latest update patcher into the wrong folder and trying to run the game from there.
• Make sure you are running play.exe or main.exe from the full game folder.

Problem #4: Install the latest graphics card driver

Just update your graphics card driver to the latest version. If that doesn't help, turn off antialiasing in the launcher settings.

Problem #5: Game client crashes after selecting character

• You need to update your graphics card driver to the latest version.
• Also, you can try running the game without launcher, but straight with main.exe file, then it should work.

Problem #6: No more characters can be created

• Your characters are displayed on the website, but can't see them in the game.
• It means, that you have typed your account using the wrong letter case. For example, I receive the following message, when I enter "Bel4enak" instead of "bel4enak". Those are two different accounts.
• Letter case in your account is saved when you enter the game for the first time and create a character.
• For example, when entered the game for the first time, I typed my account as "Bel4enak" and created a character there. that means from now on I will need to always type "bel4enak" when entering my account.
• If you forgot which letters in your account are lowercase or uppercase.

Problem #7: Launcher has failed connection to the update server

• You need to download the latest update patcher. Extract it to the game folder, replacing all required files.
• Make sure you don't have a firewall that might block an internet connection.

Problem #8: Game client freezes or crashes after launch

• Make sure that the game client is installed on the same disk as your windows system, usually it is "disc C:".
• It's recommended to use the standard path when installing the game client: C:\Games\MU Bless Online

Problem #9: Game window closes after entering login and password (or the second it launches)

• Set the following settings in launcher: Fog - on

Problem #10: Game window closes after entering login and password

• Make sure in your Internet Explorer work offline mode is disabled:

If you have version 9:

• In the Internet Explorer 9 window press f10 of the keyboard to enable menu bar -> press "file", then - "work offline" -> make sure "work offline" option is disabled - there is no check mark opposite to it.

If you have version 11:

• In the Internet Explorer 11 window press the gear icon "service" and choose "internet options" -> browser settings window will open - go to "advanced" and press the settings reset button - "reset..."

Problem #11: During the load displays the following error: "error data/world/encterain 74.obj file corrupted"

• Add a game folder to exclusions of your antivirus, especially Windows Defender. Full guide on how to do that.
• Or the short version of the guide: windows settings -> update & security -> windows security -> virus & thread protection -> virus & thread protection settings.
• At the bottom there will be "exclusions" and there you have to press "add or remove exclusions".
• Choose game folder and extract Patcher into it.

Problem #12: After starting the launcher, it shows: can't reach this page and changes its appearance

Old launcher

• Our launcher happens to conflict with other MU Online launchers.
• Delete all the extraneous MU Online launchers from your PC. Download Patcher and extract it to the game folder, replacing game files.

Problem #13: When teleporting to devias, game crashes, and it keeps crashing when you try to enter with that character (for weak pc)

• Go to the root folder of the game, for example: C:\Games\MU Bless Online. open the data folder. Inside it, find and delete object3 folder.
• Download this archive. Extract it to the data folder. In the end, you should have a new object3 folder with files from the archive.

Problem #14: After you choose the server, the game writes: you are disconnected from the server

• Disconnect could mean that your or your company's ports are closed. check for their availability.

Additional tips

• Always run your client with administrator rights.
• New client do not support Avanta and elite clickers, so work with launched clickers is not guaranteed.
• Our game client runs perfectly on clean Windows 7, 8, or 10 operating systems.
• Some old Nvidia graphics cards might have some issues supporting the antialiasing feature, so turn off this parameter, until we find the solution to the problem.
• Antivirus Avast, avg, and Bitdefender are not compatible with our game client. We recommend using Microsoft Security Essentials.

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