I've created a Synced folder on computer A, then created folders on computers B and C, that use the secret provided by computer A. All three computers have synced successfully. What happens if computer A goes offline? Do computers B and C continue to sync with each other? Or does the original Synced folder on computer A have to be online for B and C to send/receive files? I'm trying to keep files on multiple computers (and flash drives) synchronized, but none of the machines are online 24/7.