🎛️ Studio One on Mac supports AU, VST2, and VST3 plugin formats. None of these formats are interchangeable, which means we can experience issues with session recall if plugin updates are not managed properly. Examples of "Missing Devices" are shown below: ⬇️

❗ Missing Devices - The window above shows plugins missing from your session. It's possible that new instances can still be added if a different format is installed on your machine. In the example, the session is using VST2 format, but this version is missing — resulting in red-letter track errors shown below: ⬇️

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✅ Recommended Actions:

1️⃣ Update iLOK License Manager — Download the latest version from https://www.ilok.com/#!home.

2️⃣ Update plugins using Slate Digital Connect.

3️⃣ Check your Slate Digital Connect preferences to ensure you're installing the correct formats.
📝 Note: All plugin formats are installed by default.

"My Preferences" can be found in the bottom-left corner of Slate Digital Connect:

‼️ IMPORTANT: Your DAW should remain closed while Slate Digital Connect is in use.

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🛠️ Alternative Installation Method

If issues arise with Slate Digital Connect, plugins can be manually downloaded from our Installers page:

https://app.slatedigital.com/installers

💡 Once again, please ensure your DAW is completely closed during plugin installation.

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📂 Verifying Plugin Installation

Check the following paths in Finder to confirm installation: ⬇️

• AudioUnit: Macintosh HD/Library/Audio/Plugins/Components/
• VST2: Macintosh HD/Library/Audio/Plugins/VST/Slate Digital
• VST3: Macintosh HD/Library/Audio/Plugins/VST3/Slate Digital

📝 Note: Third-party plugins will often appear outside of the Slate Digital folder.

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🎚️ Verifying Formats in Studio One

Open Studio One and check the "Effects" panel to view installed plugin formats:

🔎 AU Format — Example shown below: ⬇️

🔎 VST3 Format — Example shown below: ⬇️

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🔄 Studio One Force Rescan

If problems persist, force Studio One to rescan all plugins:

1️⃣ Open Studio One. Go to the "Help" dropdown and select "Open Settings Folder".

2️⃣ Quit Studio One.

3️⃣ Rename or delete the "x64" and/or "ARM64" folders found in the Finder window:

📝 Note: M1/M2 Macs usually have only an "ARM64" folder. Intel Macs will only have an "x64" folder.
Check your Mac type here: Apple Support - Get System Info.

4️⃣ Reopen Studio One and allow it to fully rescan plugins (this may take several minutes).

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❓ Need Additional Help?

Our support team is happy to assist! Please submit a ticket here and we’ll get back to you as soon as possible.