MC8 Pro - Random and Too Frequent Reboots in Edit Mode

Hey all - I’d been an MC6 Pro user a couple years before getting my 8Pro when released and never had an issue like I’m experiencing currently. Wondering if anyone has seen it and solved it…

When editing via USB and laptop, my controller will often restart itself when I am trying to save a bank or (more troublesome) when I swap banks. I often do the latter when arranging my songs for a given set and when the controller decides to reboot when I hit the swap button, I will LOSE one of the two banks (typically the 2 banks will be the same when the reboot is finished, thus one is “lost”).

I’m on Firmware 3.13.6 (Build 250827541) and Editor Build v1.3.12.251028375. It seems like it’s only started happening with recent updates and it never happens (knock wood) when disconnected from the editor.

I’ll appreciate any insights! Thanks.

What’s your power situation like when you hook it up for editing? Are you only running it off USB from the computer? It might not be getting enough power.

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Hey Jason - thanks for the suggestion. It’s always powered by my pedalboard power supply (CIOKS, isolated, not daisy chained, plenty of current,etc.)

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Here are two things worth trying that are unlikely to help:

  • Lower your screen brightness to 30 or less.
  • Do not plug USB into MC8 Pro until it has powered on completely.

That would be interesting. I will give it a try. Thanks!

Let us know how that goes here and we can troubleshoot further.

Thanks, the problem still persists. Luckily I didn’t lose anything this week.

Have you tried to downgrade a few firmwares back? Also, do you happen to use “Engage Preset” message types a lot?

I thought it might be a bug related to the swap function - I tried to replicate this but was not able to.

Does it only happen with Saving Banks and Swapping Banks for you? I know you mentioned random but is there a sequence of steps you can do to replicate this? Saving presets has 100% no issues? I’m trying to determine if it is a software or hardware bug. If hardware, the only likely culprit would be the SD card.

Hey James - Sorry I missed this yesterday. There really is no repeatability to it and no sequence of steps I can do to MAKE it happen that I’m aware of. And it’s also started randomly rebooting while I’m doing nothing at all (while connected to the editor). I don’t believe it’s ever done it when swapping presets and certainly not when just saving a preset.

It’s really worrying because I am so reliant on the controller for pretty much everything. And I’ve been seriously pondering doing a looper for my non-MIDI stuff but I’m a little apprehensive at the moment….

Hi Jason - I have not downgraded. Frankly, I don’t feel that I ought to have to go backwards. This should work reliably, IMO.

If by “Engage Preset” you mean on the Bank Edit page, then yes, I have that on every bank because when I change banks (for me that means every song), I need to be ready to go with whatever my first preset is. I don’t think it works as reliably as it should either, but that’s for another day!

Are you controlling the MC8 using CC or PC or any other MIDI messages? If not, can you try setting the MIDI Channel to Disabled and then let me know if this issue persists for you? My hunch is that the MC8 is receiving a stream of CC messages that is trigger some functions, like the Engage Preset function, and can cause the controller to reboot if it triggers multiple times in a very short span.

Let me know if the issue still persists even with the MIDI Channel set to Disabled.

I am not controlling the MC8 with any MIDI from elsewhere. I don’t have anything connected to MIDI In, so would that even be a possibility? Can it happen via the USB port that I’m only using with the editor/Macbook?

I will Disable the MIDI Channel as you suggest this evening and let you know!

Downgrading to find a version that works usually helps to isolate where a bug might have crept in. This would have been Jason’s thinking.

James - after disabling the MIDI Channel, I’ve not seen the problem recur. I did not try the swap process that many times this week, but will keep an eye on it. That said, the responsiveness of the controller/editor seems a lot smoother since doing so as well. Thanks for the suggestion(s)!

Thanks for the update !!

So it is definitely some software that is sending MIDI on the MC’s MIDI channel, causing it to trigger some functions multiple times such that it hangs - so you might want to check what that might be.

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@james this is the same issue I talked to you about on another recent thread. You also had me disable the Midi Channel on the MC8 Pro, which seems to be preventing the reboots so far.

Although it’s not a ton of data for you to isolate the bug, it does seem that the MC8 Pro is likely having issues with extraneous USB data when plugged into a computer. For me it’s a Mac Mini desktop computer and for @TonyJax23 it’s a laptop of unknown type.

I had nothing else but the USB and 9v power plugged into the Morningstar, with no other programs running on the Mac besides Chrome for the Morningstar Editor. But turning off Midi Channel has temporarily fixed the issue.

I will likely need to turn the midi channel back on at some point soon so the MC8 Pro can also receive data. But for now it is a temporary fix. I hope you can isolate and fix the bug.

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it is highly probably that the messages that the MC8 PRO is receiving is CC#10 - C#33, which will trigger the Engage Preset function. If a stream of these messages is received, then the function will be triggered multiple times which will cause the controller to hang/reboot. I can fix this behaviour, although that won’t fix the underlying issue that is causing this, which is that the MC is receiving CC messages from an external source.

I added a MIDI Monitor feature on the PRO devices. If you want, you can use this firmware to check if it is receiving any MIDI messages from your computer.

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I thought my issue might have been resolved with disabling the MIDI channel on the MC8 Pro, but it’s back. Tonight the reboots were not happening when I tried to swap banks as was typical before. It was rebooting (did it 3x in the space of about 30 minutes of editing) while I was trying (unsuccessfully) to get Setlist Manager to work (I’ll post that as a separate topic).

I bought an ML5R and installed it a few days ago , now making changes on the controller related to that change and frustrated with the reboots again.

Please drop us an email if the issue persists. Seems unlikely that it is a hardware issue but we’ll
try to troubleshoot one more time. If it is a hardware fault, we can send the necessary replacement parts over.

Just want to confirm again that there isn’t any software or hardware that is sending MIDI to the MC that is causing this to happen.