Logic Pro: Some SMPTE events won‘t unlock

In Logic Pro, after you lock a region (or events within it) to SMPTE time, you can't subsequently unlock all of the SMPTE events. Some will unlock, but others won't.

If this happens, undo your actions back to the last point before locking SMPTE to the region or events.

This issue is resolved in Logic Pro version 7.1.1 or later, available at Apple Downloads.