Can't Sync Contacts from iPhone X to MacBook Pro
None of the new contacts I am adding on my iPhone X are transferring over iCloud to my MacBook Pro. I have made sure everything was turned on on both my MacBook and iPhone, checked the default account on my iPhone and it is on iCloud. I've also signed out of iCloud on my MacBook Pro and it still isn't syncing my new contacts from my iPhone X over to my MacBook Pro through iCloud. I even did a manual back-up via plugging my phone into my MacBook Pro and still nothing.
MacBook Pro, OS X Mountain Lion (10.8.4)