iCloud not syncing

I cannot for the life of me get iCloud syncing to work across two Apple TVs and Mac OSX. Currently watching, changes to metadata, playlists, etc are not syncing between any of the devices. I’m signed in as the primary user on all devices, using the same iCloud ID. Am I missing something?

What version number of Infuse is on each device?

Mac OS
Version 7.1.2 (7.1.3810)

tvOS
Version 7.1.2 (3810)

iPad OS
Version 7.1.2 (3810)