Thank you MC for the quick driver update. However, I am not sure if this issue I have is RME or Apple related.
After I updated to MacOS Sonoma, whenever I playback video on bowser [Safari/Chrome/Edge] either on Youtube or Netflix, there's a high chance that has Audio dropout or audio/video is out of sync after the video has been playback for a while. switch the output device to a Macbook Pro speaker then UFX+ fixes the problem but it will happen randomly again even in the same video.

I have this issue with the 4.08 driver as well as the 4.09 driver.

Laptop: 2021 Macbook Pro 14" with M1Max CPU connected to external monitor via USB-C dp alt mode.
OS: MacOS Sonoma
Audio Interface: RME UFX+ connected via USB3

*edit: This only happens when connecting via USB, do not experience drop out/audio video syncing issue with TB connection.

I am also having audio dropouts with UFX III after updating to Sonoma. I have not installed the latest driver kit driver, and am hesitant to do so after reading this post.

Any word from RME about this?

Neu gebootet nach der Installation?

Ich meine auf Eurer Webseite einen Link gefunden zu haben
der nur TotalMix FX in der neusten Version zum Download ansteht.
Den finde ich leider nicht mehr.

Liebe Community,

ich schaffe es einfach nicht mein Fireface UFX unter sonoma zum Laufen zu bringen. Auf meinem Mac Pro 2013 Monterey läuft alles.
Total mix oeffnet nicht und das USB Update macht er einfach nicht. ich habe mich an die Anleitung uf der rme Seite gehalten. Dort steht es für Ventura. Wer kann mir helfen.
Habe ein M 1 Max Mac Book pro ...

Hi,

I made my own post (https://forum.rme-audio.de/viewtopic.php?id=38181) about these Sonoma glitches on the newest driver, and I was wondering if there were any further updates to this? I'm getting random glitches where a small burst of the current audio is repeated a few times and then continues normally. This is super annoying to say the very least, especially when a client is listening through a song... I'm on Sonoma 14.0, UFX III with v4.09 and v20. The old kernel extension has been deleted.

This doesn't happen when the UFX is disconnected.

Am very happy to try a new driver version if you have something cooking.

The question is which other units (like dongles, devices etc) are connected to the same USB bus? And what other background apps are active that might interfere? Sonoma fixed the basic issues for most, so there must be something special about your system that it still fails as with the older OS.

Here is someones post on Apple's developer forums that seems to be exactly what I'm experiencing:

https://developer.apple.com/forums/thre … 23?page=24

Troubleshooting update:

I disconnected every single other USB device from my computer and only had the UFX III connected, with a direct cable from the box. Glitches occurred.

I changed the UFX III to the UFX+. Same behaviour.

I then thought that I might just as well try using Thunderbolt. A pretty expensive experiment of about 100€ to get the correct cable and the adapter. Once I had them, I connected the UFX+ with TB to my laptop, and while everything seemed to connect correctly and the output meters were showing output in TotalMix, absolutely no analog signal is coming out of the unit. Switching the cable back to USB, and now there is analog signal. With Thunderbolt there was digital output signal, as my tc electronic meter was showing stuff. But nothing analog.

I'm now in the process of downloading Monterey. Damn this. At least the glitches were way less seldom on Monterey.

Yes, yes and yes. I tried all the possible combinations, but ultimately nothing has helped with getting current out of the analogue outs of the UFX+ when using Thunderbolt. Also, there is no input signal when on Thunderbolt: when I stick my guitar direct into the UFX, there is no meter movement on neither TotalMix or the unit itself. Changing to USB cures this, but alas, glitches occur. I'm on the Kernel driver version of Thunderbolt (v1.23) and the latest firmware v165. The DriverKit driver made no change.

What I've done to get audio out of the UFX+ is to use my MADI AD/DA unit for this, as we know that digital signal was coming out anyway. I now have sound, and there have been no glitches since. If I switch back to USB, a glitch will occur sooner or later. This is still on Sonoma, by the way. So Thunderbolt and my UFX+ seems to be the answer somewhat, but it's very peculiar that there is no analogue in or out with Thunderbolt, and that it suddenly appears when switching to USB

EDIT: Might I also add, that the Thunderbolt connection has enabled my ability to use the UFX+ in Zoom again, as per to the USB connection which crashed Zoom whenever the Audio settings were opened.

Email sent.

After lots of trouble with Ventura 13.6 (dropouts crackle...) I wiped the HD, reinstalled and updated to Sonoma. I installed above mentioned 4.09, but 4.08 is installed?

At least the UFX III works throug USB-C, iMacPro1,1 and the Apple HDMI,USB-adapter. Connected to USB I still get lots of CRC.

Anway, how do  I install 4.09? Thanks in advance, D

So I did, Fireface USB DK 409, installed and Fireface USB Settings app shows 4.08 in to top right corner (firmware v20).
14.1.0, iMacPro 1,1
I tried to add a screenshot but that did not work for now...
Thanks

4.09 is now officially on our website for download, with two changes: included TotalMix FX is 1.86, and the installer has been modified to make installation much easier and quicker. See included readme. Link is the same as in first post.

Windows: https://www.rme-audio.de/downloads/tmfx_win_186.zip

Mac: https://www.rme-audio.de/downloads/tmfx_mac_186.zip

Hi! I´m trying to install my UCX on Sonoma using the latest driver and following the M1 guide but still not being recognized. Any solution i´m missing? I also updated totalmix. thank you!