Changes made to logins in either the desktop or universal version are not synced back to the Families website (and therefore no other clients). This does not seem to be a problem with newly added entries - only changes appear not the propagate. I have tried a manual sync from both Windows U/D and doesn't seem to help.
Follow-up question: How long should we have to wait to see changes made elsewhere (i.e. Mac, or Families web) reflected in the Windows apps?
1Password Version: 2016.5.2401d
Extension Version: 126.96.36.199
OS Version: Win10 14342
Sync Type: Families