Update v1.51.77.1020:
Fixed an issue where custom text was not always displaying properly in-game.
Fixed an issue where NPC invites to festivals or to residences were sending Sims to an incorrect destination.
There is still a lingering issue regarding invites to events in Get Famous, such as the talent showcase, and celebrity sightings. We are continuing to investigate those for a future update.
Fixed an issue where Mac players on certain older versions of OS X were unable to launch the game. As a result, we rolled back a fix that was done for Mac players on 64-bit systems that eliminated a false error message which said, “The Sims 4 is not optimized for your Mac and needs to be updated.”