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I’m frustrated

MPX8 editor can't open on Mac (OS Mojave)

Just bought the MPX8 and i'm feeling very sad I can't even use it right now..

I found that some other guys are also facing the same problem, after clicking the icon it just keeps bouncing in the dock and then "MPX8 Editor was quit unexpectedly" comes out, tried all the hints I can find from the forum and failed, any real solution out now?

I'm running Mac OS Mojave 10.14.6
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  • Hey Armando88,

    Thanks for posting!

    Sorry to hear that you are having trouble! I recommend deleting the Editor's Preferences file. To do this:

    1. Open your Applications folder.

    2. Right-click the MPX8 Editor.

    3. Click Show Package Contents.

    4. Open Content folder.

    5. Delete info.plist file.


    If you are still unable to launch the Editor, you may need to disable 32-bit mode. Right-click on the MPX8 Editor in your Application folder. Select Get Info and disable the box for 32-bit mode then launch the Editor.

    Try this and let me know how it goes!
    • Hi Eliza! Yes I’ve already did this (delete the info.plist file). Worked once and all the 60+ times I’ve tried it later, the program won’t open again :-(

      The second tip I’ve tried to look for it. But couldn’t find it on my MacBook. When I select info, there is no option the disable 32-bit mode. I’ve seen people telling this before (including screenshots), but the option to disable it is not showing on my MacBook.
    • Hey Armando88,

      Sorry to hear that you're still having trouble! That may not show up on the Mojave system. Let's not worry about that for now. Do you have an audio interface or external sound card connected to your Mac when trying to launch the Editor? If so, I recommend disconnecting that interface. They can cause the program to stall. That goes for any other USB devices you may have connected.

      I also recommend closing any other audio/MIDI programs as Editors tend to be fussy when other applications are running.
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  • This reply was removed on 2019-09-04.
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