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Frequently Asked Questions

How to delete Audio Unit cache?

After installing new AU plug-ins, you may find that Logic Pro is not using the new versions. You can force a rescan by deleting the AU cache.

In the Finder, choose Go -> Go to Folder from the menu.
Type ~/Library/Caches in the “Go to the folder” field.
Press the Go button
Remove the “com.apple.audiounits.cache” file if present
Remove the ~/Library/Caches/AudioUnitCache folder if present

The next time you start Logic, the installed Audio Unit plug-ins will be rescanned and Logic should then startup normally.