Audacity Forum

Force Quit Audacity in Activity Monitor if necessary. Open Finder, choose Go > Go to Folder and type: ~/Library/Application Support/audacity/ In that "audacity" folder, copy the "audacity.cfg" file to somewhere else such as your Desktop. Then delete the audacity.cfg in ~/Library/Application Support...

My experience also. OS 10.10.4, audacity-macosx-ub-2.1.1.dmg I cleared the query about "not an App Store or identified developer." Once bounce and no sign of the app. I reverted to 2.1.0 .0. It works fine.