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Yeah, I'm not sure about the T2 chip stuff. I had the exact same issues with the 2016 model.

I believe this is absolutely an Apple problem. This is effecting RME interfaces as well: https://www.forum.rme-audio.de/viewtopic.php?id=26881 https://www.forum.rme-audio.de/viewtopic.php?pid=136666#p136666 The new 2018 Macbook Pros and Mac Minis have even more issues: https://appleinsider.com/artic...

txbdan: For me, tickling the "Computer Volume Controls" checkbox fixes these issues.

James: I think that's the same behavior I'm seeing. Only issues are with regard to Mac system audio. I don't THINK I've ever had these issues in a DAW or anything else that directly addresses the soundcard.

New reply from MOTU Support: "Yes, we've seen improvements with Thunderbolt docks as a "buffer". And yes, other users across different manufacturers are experiencing similar symptoms. We believe this to be an Apple Core Audio bug. It's more prevalent over USB, but we've seen it on Thu...

New reply from MOTU Support: "Yes, we've seen improvements with Thunderbolt docks as a "buffer". And yes, other users across different manufacturers are experiencing similar symptoms. We believe this to be an Apple Core Audio bug. It's more prevalent over USB, but we've seen it on Thu...

I solved all of my issues, by buying one of these: https://www.amazon.com/CalDigit-Thunderbolt-Portable-Charging-Ethernet/dp/B079H5B31Q/ref=pd_lpo_vtph_147_tr_t_2?_encoding=UTF8&refRID=DHWERB84QFZ71MAC63BC&th=1 and running the Ultralite Mk4 through the USB port on that, which puts it on the ...

I solved all of my issues, by buying one of these: https://www.amazon.com/CalDigit-Thunderbolt-Portable-Charging-Ethernet/dp/B079H5B31Q/ref=pd_lpo_vtph_147_tr_t_2?_encoding=UTF8&refRID=DHWERB84QFZ71MAC63BC&th=1 and running the Ultralite Mk4 through the USB port on that, which puts it on the ...

Support's suggestions made no difference for me.

Just received this from support: Added by Brendan on 2019/01/03 16:51:18 Universal Codey, Hope you're well. I wanted to share a bit of information with you. A few customers have recently solved their USB dropout problems by upgrading to OS 10.14.2, resetting their PRAM, and then reinstalling the MOT...

Yes, I have the newest firmware and the newest drivers, and have the issues on a fresh install of Sierra, High Sierra and Mojave with no other software installed, just listening in iTunes.

Same experience as both of you here.

RME having same issues as well FYI: https://www.forum.rme-audio.de/viewtopic.php?id=26881

Great info here regarding "Computer Volume" and "Location Services". Those indeed temporarily fix and cause the audio drop out and sample rate issues for me, respectively. Interesting to see that it's happening on the Fireface as well. I assume there will be some driver solutions...

I talked with a MOTU support person yesterday and he seemed to blame Apple's OS updates, but I've been having these issues since an early version of Sierra, so I am kind of doubting that, and even if it is Apple's fault MOTU should have it fixed considering that they posted this to the front of thei...

I've also got an Ultralite Mk4 and 2018 Macbook Pro running Mojave. I had the Mk3 and it was flawless until Sierra. Then I had kernel panics caused by Firewire sleep issues in macOS. So I upgraded to the Mk4. Until a few days ago, I had a 2016 Macbook Pro with 10.12 on it. Had major issues with the ...