Studio One – Plugin Not Showing Up (Mac)

Problem: You installed Safari Plugins (VST3) but they don’t appear in Studio One.

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Step 1: Open Plugin Locations

1. Open Studio One → Preferences → Locations → VST Plug‑Ins.

2. Verify that the folder where Safari Plugins installed is listed:

   /Library/Audio/Plug-Ins/VST3/

3. If the folder isn’t listed, click Add and select it.

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Step 2: Rescan Plugins

1. In Locations → VST Plug‑Ins, click Reset Blacklist and Remove Settings Cache.

2. Click Scan at Startup or manually Start Scan to force a full rescan.

3. Restart Studio One and check if Safari Plugins appear in the Instruments/Effects browser.

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Step 3: Clear Cache and Blacklist (macOS, VST3)

If the plugin still doesn’t appear:

1. Close Studio One.

2. Open Finder and navigate to:

   ~/Library/Application Support/PreSonus/Studio One 6/x64/

3. Delete the following files:

   • PluginBlacklist.settings → removes the plugin blacklist

   • PlugInScanner.log → forces a full plugin rescan

4. Reopen Studio One. It will rebuild the plugin database and rescan all VST3 plugins.

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Step 4: Run Studio One in Rosetta (Optional)

Some plugins (even M1-compatible) work better under Rosetta emulation:

1. Go to Applications → Studio One 7.

2. Right-click the app → select Get Info.

3. Check Open using Rosetta.

4. Restart Studio One and test the plugins again.

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Step 5: Verify Installation

1. Navigate to the plugin folder:

   /Library/Audio/Plug-Ins/VST3/

2. Confirm that the plugin files exist (.vst3).

3. If missing, reinstall Safari Plugins using the installer.

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Tips / Troubleshooting

• Only VST3 is required for Studio One (VST2 and AU are not used).

• Clearing the blacklist and cache usually solves missing plugin issues.

• Restart Studio One after rescanning or Rosetta mode changes.

• Keep only the latest plugin versions to avoid conflicts.