My iPod, iPad, and Mac are all used for sending iMessages. However, when I send a message from one device and have a conversation with someone else, the sent and received messages don't usually appear on the other devices. This makes for strange breaks in the conversation thread when switching between devices. What could be a reason for this?
IPhone – iMessages Not In Sync
ipadiphoneipod-touchmacmessages
Best Answer
Just yesterday, Brian X Chen posted a similar problem. The solution he suggested is to uninstall Messages Beta on your Mac.