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  3. Synchron Series
  4. Synchron Pianos crashing constantly on macOS
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    Here's another crash report. Posting here in case submitting it through the software doesn't work again.

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  • A
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    Another crash today.

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  • PaulP
    VSL Team
    PaulP

    Hi Alkan, 

    Thanks, those reports will be looked at asap (which probably means monday). 

    Best, 
    Paul

    Paul Kopf Product Manager VSL
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    Hi Paul,

    The program (almost) always crashes immediately upon pressing a key on my MIDI controller (Kawai VPC), attached via MIDI cable (not USB) to a Focusrite Scarlett 18i8 (1st generation). Often not playing for a minute or more seems to trigger the crash: As soon as a key is pressed again, Synchron crashes. Other crashes are purely random and occur while playing.

    I've sent crash reports every time for months, so you should have literally many hundreds of them by now!
  • A
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    Another crash upon pressing a MIDI key. :-( This time the Mac was woken from sleep mode, yet Synchron (surprisingly) worked. However, after taking a minute or two to reply to the VSL thread, it crashed again as soon as I pressed another key.

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  • A
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    Another crash upon pressing a MIDI key. Synchron had been running in the background but macOS did not enter sleep mode and the screen remained on.

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  • A
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    Another crash. Steps to reproduce: Load Synchron, wait a couple minutes, then press a MIDI key.

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  • A
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    Another crash after idling, then pressing a MIDI key

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  • PaulP
    VSL Team
    PaulP

    Hi Alkan, 

    We'll check those reports next week, currently, it's "only" support working (first weekend in the new year). 

    Very unusual, this behaviour... 

    Thanks for your patience, 

    Paul

    Paul Kopf Product Manager VSL
  • A
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    Thanks, Paul. Could someone at VSL perhaps confirm that you've received my hundreds of crash reports over the past half a year or so? I'm guessing there must be at least 500. I started posting some screenshots here in case they're not received for some reason. This crash behavior has persisted through different macOS and Synchron versions. FWIW, I'm using a pretty high-end and well-maintained system, so I can't think of any hardware or software that might trigger this problem.
  • A
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    Synchron crashed this time the moment I loaded it and pressed a MIDI key. Kawai VPC -> Saffire 18i8 (1st gen.) via standard MIDI cable (not USB). Turned on VPC this time after loading Synchron.

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  • A
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    Another crash upon pressing a MIDI key. It had just worked a moment ago.

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  • A
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    After an apparent MIDI glitch, I powered the Scarlett 18i8 off and back on. Synchron no longer recognized the MIDI device (VPC1), even though the 18i8 to which it is connected was still shown in Synchron settings. Something about this process triggered another crash.

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  • A
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    Pressed a MIDI key. This time I tried plugging the VPC1 directly into the iMac via USB.

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  • A
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    Looks like I might have found the culprit! It might be an issue with the Focusrite Saffire's MIDI in (via standard MIDI cable). Mine is a 1st-generation 18i8. Maybe it goes into a power saving mode and causes a problem with Synchron on wake? This wouldn't explain every case, though, since often it crashes at random while playing Synchron.

    In any case, I've now connected the Kawai VPC1 directly to the iMac using USB. The Mac has gone into sleep mode and woken up, yet Synchron so far has not crashed with this setup.

    The only downside with this setup is that it costs me a USB port, but I can live with that small limitation if it means Synchron won't crash all the time.

    It would still be helpful for VSL to look at this case, and I'd be grateful for any relevant info. I can keep you posted if the software crashes with this setup, but so far, so good.
  • A
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    Good news: So far, so good. It does appear that the Saffire interface (at least my 1st-generation 18i8 model, connected to the controller via standard MIDI cable) must be the cause of the frequent crashes.

    Since last evening I've had the VPC1 controller connected directly to the iMac via USB. So far there haven't been any crashes since switching to this setup. Even the usual triggers such as putting the Mac into sleep mode, or turning the controller keyboard off and back on, haven't caused a crash so far.

    I'd still like to know whether the hundreds of crash reports sent over the past few months were received by VSL, as this would be important for debugging any future issues. Can anyone confirm?
  • Andreas8420A
    VSL Team
    Andreas8420A

    Continued via Email Support!

    @Alkan: I updated your email case. Best regards, Andreas

    VSL Team | Product Specialist & Media Editing