After upgrading from a previous version of Logic, ReWire no longer seems to work. ReWire client applications do not sync to Logic Pro X.
Logic Pro X has a new option "Off" in the ReWire Behavior menu in Logic's Preferences panel. This is the default setting in Logic Pro X. To change the setting:
Choose Logic Pro > Preferences > Audio.
Click the ReWire Behavior drop-down menu.
Choose either "Playback Mode (Less CPU Load)" if you are only routing audio from a ReWire client while syncing the transports, or "Live Mode (ReWire and Internal) if you plan to trigger instrument plug-ins in the ReWire client from Logic.
Quit and then reopen Logic Pro X.
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