If you've upgraded to macOS Golden Gate (macOS 27) and the Sessionwire drivers or plugins have stopped working, you need to install Rosetta 2. It takes about a minute.

Why it happens

The current Sessionwire plugins and audio drivers need Rosetta 2, Apple's tool for running Intel software on Apple Silicon Macs. macOS 27 doesn't install Rosetta 2, and removes it during the upgrade if you had it.

Normal apps make macOS ask you to install Rosetta 2 the first time you open them. Audio drivers load in the background, so you never see that prompt. The drivers just fail to load, and nothing tells you why.

Native versions of the plugins and drivers are on the way. Your DAW can stay as it is.

What you'll notice

• The Sessionwire devices are missing from the HQ Audio and Talkback menus in your Studio
• ToSW, FromSW, ToSWTalkback and FromSWTalkback are missing from Audio MIDI Setup and your DAW's device list
• The Send or Receive plugin says it can't find its device

Install Rosetta 2

1. Open Terminal (Applications > Utilities > Terminal).
2. Paste this and press Return: softwareupdate --install-rosetta --agree-to-license
3. Enter your Mac password if asked. Nothing shows as you type, which is normal.
4. Wait for "Install of Rosetta 2 finished successfully."
5. Restart your Mac. The drivers only load at startup, so this step is needed.

After the restart, open Audio MIDI Setup (Applications > Utilities) and check all four Sessionwire drivers are listed.

If they're still missing, see Sessionwire drivers or plugins not showing up.