Composer (App Store version) functional in Sierra?

dmlounsbury's Avatar


30 Jul, 2016 07:32 PM

I've started testing the public beta, and one of the first problems I've seen is that MultiMarkdown Composer does not appear to work correctly. (I noticed this first because I keep my beta logs in MMC...oh well.)

The symptom so far is that documents do not display scroll bars; when you try to scroll them they will not move beyond the original window.

This persists after both re-launcing and re-downloading Composer. Screenshot attached.

  1. Support Staff 1 Posted by Fletcher on 03 Aug, 2016 03:52 PM

    Fletcher's Avatar

    Having been through a couple of OS X betas, I've learned that they do strange things. I've seen all sorts of odd behavior in Composer that mysteriously goes away as they get closer to GM on the new version of OS X. Unfortunately, there's really nothing I can do about this until Apple works out the kinks on their end. Part of the price you pay for being a beta tester for them -- random apps don't work, and usually in fairly inexplicable ways. Also the reason I don't upgrade at all until closer to their release date, and I don't update my main machine until it's fully ready. I got tired of the headaches, though it was fun being able to try out all the new features.

    The thing to remember is that Composer uses basic apple widgets (e.g. NSTextView), but uses almost all of the customization options they offer). The more esoteric options tend to be the things that get fixed later on in the beta process, based on what I've seen before. An application that uses only the NSTextView basics (e.g. TextEdit), is likely to work fairly well throughout the OS beta cycle.

    As for scroll bars specifically, I'm not sure if Sierra changes the GUI options for scrollbars -- you may wish to check the System Preferences there and try changing them to see if that fixes things.

    The exception to this is a new feature in OS X that will require specific changes to Composer to support. I can start on those.

    In either case, I recommend that just about all Composer users upgrade to the v3 beta. Not sure whether it works any more fluidly with Sierra or not though.

    Please feel free to write back any follow-up questions/specifics -- I can't offer much help until I upgrade myself.

  2. 2 Posted by dmlounsbury on 14 Aug, 2016 03:47 PM

    dmlounsbury's Avatar

    Thanks, Fletcher. I didn't expect a fix (beta, as you note), but wanted to
    make sure you were aware of the problem.

    I'd like to sign up for the beta. However, I'm having problems signing up
    for the mail list - all my attempts to use the Mailing List Signup
    <> page ne the error "Too many subscribe
    attempts for this email address. Please try again in about 5 minutes.
    (#8590)", even after trying a couple of different email addresses. Is there
    a link I can visit to get the beta?

    Dave Lounsbury

  3. Support Staff 3 Posted by Fletcher on 14 Aug, 2016 10:57 PM

    Fletcher's Avatar
  4. 4 Posted by dmlounsbury on 30 Aug, 2016 09:10 PM

    dmlounsbury's Avatar


    sorry to bug you, but I'm having no success getting the 3.0b45 beta to work on Sierra. I consistently get an error dialog telling me to "Move “MultiMarkdown Composer (Non-Sandboxed)” to the Applications folder, and try again" (screenshot attached); however MMC is already in /Applications. I have also tried renaming MultiMarkdown Composer (Non-Sandboxed) to simply MultiMarkdown Composer, but got the same result.

    Any guidance?

  5. Support Staff 5 Posted by Fletcher on 30 Aug, 2016 10:21 PM

    Fletcher's Avatar

    If you install a new OS, App Store applications may think it's a new

    Since Composer is sold through the App Store, you have to redownload the
    App Store version and run it once to make sure it works.

    Then you can re-run the Non-Sandboxed version.

    Also, be sure to check Console to see if there are any telling error

    Let me know if that doesn't work.


    PS> Sierra is still in beta -- there may be issues as Apple works out
    the kinks (this happened with the last few releases as well.)

  6. Fletcher closed this discussion on 19 Sep, 2017 05:44 AM.

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