Since 1.30x Octatrack OS series - I have experienced several system freezes for no apparent reason. Not doing anything complex - basic seqs. I have reverted back to the 1.25x Octatrack OS.
I will do a more thorough trace of the steps which incur system freeze - over the next few weeks…
I just updated to 1.30C today and I’ve gotten 2 freezes today. One while it was just sitting there not playing anything and another while I was playing MIDI notes in. This didn’t happen on 1.30B which I had on there since it came out until today when I upgraded to 1.30C 
I still haven’t upgraded from 1.25H, I was just thinking about it but reading this I guess I’ll hold out a little more…
Conditional trigs don’t make up for conditional freezes… 
I didn’t have the issue on 1.30B…
I just realized my USB cable was still plugged into my MacBook Pro… oops
Known issues with macOS and USB that can cause a freeze:
Make sure to eject the device from macOS after using USB Disk Mode.
Do not exit USB Disk Mode on the Octatrack before the unit has been ejected.
Did you have your OT attached by usb when it froze?
Tying to decide if I should take the plunge or wait for D…
I’ve had no problems updating my Mk 1 to 1.30C and running it for hours. I’m not using the OT’ s midi at all, though.
Sadly - no. I experience the OT freeze untethered from the Macbook Pro.
not good!
I should clarify that on OT 1.30x I experienced several OT freezes and had to power cycle the OT, additionally the OT was NOT tethered via USB to Macbook Pro. Never experienced random freezing while on 1.25H.
Hope to spend some quality time with OT in the near future…
I had mine plugged in still when it froze. I’ve since unplugged it and I’ll report back if it freezes again.
Prior to this I was running 1.30B without any issues. I was hammering it with tons of MIDI as well as sending a ton of MIDI along with plocked audio tracks.
Noteable changes:
1.30B to 1.30C
Left USB plugged into MacBook Pro
Used Conditional triggers
I’ll try to narrow down which of these caused the issue.
Since unplugging the USB cable I haven’t had any freezing.
Thanks for posting, i’ll try unplugging USB and see if i get less freezes… I’ve also been getting them since updating from 1.25
It was definitely my issue. Haven’t had a freeze since unplugging.
Am I likely to lose anything upgrading my OT MK1 to 1.30C? Any known issues doing this upgrade?
Please let me know good people.
thanks
hey Rusty, I have back-ups in triplicate!!.. comes with playing live for 25 years!!
But, I’m concerned my current project will not work or am I just being a fuckhead?
I know.
No, reasonable to be conerned. It’s happened before. I think I read about a couple of upgrade issues; but I’ve been really hectic lately; so haven’t looked into it.
mate, I’ll wait for you! I got a few shows coming up and will leave until you give me the 
You are my OT spirit guide!
i upgraded recently and have been smooth sailing so far.