Creative Cloud files and libraries do not sync

Faulty behaviours:

- folders and files uploaded to creative.adobe.com do not appear on my computer

- folders and files created on local computer do not appear on creative.adobe.com

- libraries created through applications on computer are not listed on creative.adobe.com

- items added by clicking the download button on CC app > Assets > Market do not show up on creative.adobe.com libraries

- items added through Adobe Stock do not appear in local libraries

- library panels in apps request that I turn on file syncing, when it is already enabled

-> above: verified only for Illustrator and Photoshop

Other behaviours:

- no errors reported by CC app

- library panels in applications are identical between applications on same local computer

- items added by clicking the download button on CC app > Assets > Market show up in local libraries

-> above: verified only for Illustrator and Photoshop

- occasional reports of "Creative Cloud Libraries are currently unavailable" on CC app > Assets > Market

- typekit fonts are synced between cloud and computer

Conditions:

- file syncing is turned on (in CC app)

- MacOS Sierra 10.12.1

- CC app 3.9.5.353

Troubleshooting procedures:

1. Refresh software
   1. Uninstall all CC applications, including Creative Cloud
   2. Delete all files in ~/Library/Application Support/Adobe/
   3. Delete CC package from Applications folder
   4. Restart
   5. Reinstall Adobe CC app
2. Reset sync
   1. Turn off file syncing in CC app
   2. Turn on file syncing in CC app
3. Install as alternate user
   1. Uninstall CC app
   2. Create a new admin user
   3. Install CC app as new admin user

Results of troubleshooting:

1. No change
2. No change
3. No change. Files do not sync to either local user account.

I'm not sure what else to try. Any help is appreciated.