Mainstage 3 / MOTU Ultralite Mk3 Hybrid driving me crazy

Sorry, I posted a repeat of my earlier post, so here's what I meant to post:

I have spoken to MOTU and they are not aware of any common issues. I have also spoken to a colleague who has been using Ultralites with Mountain Lion and who agrees with me that this was a stable set-up. I don't have a lot of time, so I'm prioritising testing with Mountain Lion now, and I'm hoping that this will work. It's not a long-term solution, as I don't know how much longer new Macs will be available that will work ok with Mountain Lion.

Before today, I have tried:

MacBook Air running Mavericks / Mainstage 3.0.4 / MOTU Ultralite - glitches when triggering MIDI from an external source via a MOTU microlite MIDI interface. These glitches also occurred when I left MainStage idle, ie. with no MIDI being triggered. So there wasn't any audio happening at all, but I still got the IOAudiostream error messages in my Console log.

MacBook Air running Mavericks / Mainstage 3.0.4 / NO MOTU Ultralite - triggering MIDI from an external source via a MOTU microlite MIDI interface (but just using the built-in headphone output for audio) - this DIDN'T result in any glitches when I left it running for 36 hours.

What I'm about to try:

MacBook Air running Mountain Lion / Mainstage 3.0.4 / MOTU Ultralite - if this works then I know it's an issue to do with Mavericks and the Ultralite - and perhaps this issue will also occur with other audio interfaces too. Perhaps not.

Again, I'll let you know what I discover.

Steve

PS. One thing to mention here is that I did do a gig about a month ago, before I ran into all this trouble, which was a simple USB keyboard and MainStage set-up, using the built-in headphone out (and still with Mavericks). Just a little "acoustic" gig, so simple electric piano sounds. I did have an audio glitch then, but I can't confirm whether or not it was the same issue, as I didn't investigate it at the time, and the Console log doesn't go back far enough for me to check it now. I wish I'd looked into it when it happened!

Ok, I have been running MainStage for 8 hours on Mountain Lion, with the MOTU, and haven't had a single glitch. I'm rebooting back to Mavericks to see if I can confirm that the glitch returns. My planned tests now are:

Mavericks / MainStage / Ultralite (same as before, to confirm whether glitch returns)

Mavericks / iTunes / Ultralite

If the above two tests still result in glitches, then we know that the problem isn't MainStage in Mavericks, but either Mavericks itself or the combination of Mavericks and Ultralite. I will then try:

Mavericks / MainStage / Focusrite Saffire Pro 24

If this still glitches, then we know that it is Mavericks itself, or at least not a problem specific to MOTU interfaces.

Tomas, do you have an external drive which you could set up as a bootable Mountain Lion drive? If so then perhaps you could also test MainStage in Mountain Lion with your MOTU, and see if you get the same results as me. I'd love to be able to go back to MOTU with as much detail as possible so they can help us track this problem down.

Good news - the glitch happened again with Mavericks / Mainstage / Ultralite. Only took 15 minutes for it to happen :-)

Gonna shutdown, boot up and try Mavericks / iTunes / Ultralite now.

Steve

Hi everybody!

Any news on that issue? I am experiencing the exact same issue here.

The last five days I set up my new system and (unfortunately) used it live... 1 glitch yesterday, several today. switched the whole rig off during the show and used internal stuff. pretty tough one, I am a live sound engineer and used logic and waves plugins for a 600 people gig. I reacted quickly, but still - it is very annoying to build a brand new system with a lot of apple and sound experience, and then unpredictable stuff happens. anyway - here is my configuration:

Mac Mini Quad i7 2,6 with 16GB RAM

OSX 10.9.4

Logic Pro X 10.0.7

MOTU Ultralight Hybrid 3 with Firewire 800 to 400 cable, bus powered, latest driver

latest Waves 9, USB dongled

Latency 64 Samples @ 48kHz

about 10 plugins, not even 20 % of the CPUs in use, if you can believe the activity monitor

I used the very same MOTU with my Macbook and 10.8 a lot of times without any issue. But now switched to Mavericks, Logic Pro X, the mac mini, so i changed a lot of components. In the Console I get the same Error Message as described by you people above. So maybe I don't have to try for days to rule out, what the F*** is going on. Seems to be Mavericks and MOTU, right?

Thanks a lot for sharing your experiences here, maybe saves me and others lot of time.

Jochen

Hi again,

the funny thing is, that I use a MOTU Microbook on my Macbook Pro with Mavericks, and it works just fine. So it has to be the combination of Ultralight an 10.9 ?! If that is the case I will put the Ultralight on ebay and buy RME.

Thanks,

Jochen

Hi everyone,

I can confirm that Mountain Lion is still glitch-free for me with my Ultralites, on more than one laptop. So that's good.

I haven't had time to run tests with any other interfaces - I hope to do this at some point but it's not really top of my priority list right now. So we can confirm that there is a problem with the Ultralite / Mavericks, but I can't say anything further than that with any certainty at the moment.

Steve

I ran a 24 hour test with logic pro x, ultralight and mavericks. lots of glitches. hours of good performance, but about 10 times it randomly made that annoying noise, and "console" reports the kernel ioaudiostream errors.

also tried logic 9 and MainStage 2, same thing. just random glitches. very rare, but still there. it doesn't make a difference if I don't use any plugins at all. only the fact that audio plays trough the system makes it glitch.

next night i will let itunes play through the ultralight, and see what "console" is telling me tomorrow morning.

You guessed it - it happened again. Only iTunes playing through the ultralight. Glitches all over the place.

Next step will be my 5 year old MacBook with Mavericks and the ultralight.

Same thing on the MacBook with Mavericks. I will ask a friend for a Fireface and run a test with that.

This feels like like Windows 15 years ago.