Studio One – Plugin Not Showing Up (PC)

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

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Step 1: Open Plugin Locations

Open Studio One → Options → Locations → VST Plug-Ins.

Verify that the folder where Safari Plugins installed is listed:

C:\Program Files\Common Files\VST3\

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

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Step 2: Rescan Plugins

In Locations → VST Plug-Ins, click:

• Reset Blacklist

• Remove Settings Cache

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

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

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

If the plugin still doesn’t appear:

1. Close Studio One

2. Open File Explorer and navigate to:

C:\Users\%USERNAME%\AppData\Roaming\PreSonus\Studio One 6\x64\

3. Delete the following files:

• PluginBlacklist.settings → removes the plugin blacklist

• PlugInScanner.log → forces a full plugin rescan

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

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Step 4: Verify Installation

Navigate to the plugin folder:

C:\Program Files\Common Files\VST3\

Confirm that the plugin files exist (.vst3).
If missing, reinstall Safari Plugins using the Windows 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 fixes missing plugin issues.

• Restart Studio One after rescanning.

• Keep only the latest plugin versions to avoid conflicts.