I use 1P for Mac (not an account) on two Mac laptops, syncing to a local network drive folder. When I leave home I set the traveling Mac's sync to None so that it won't look for the network folder when it is away from home. When I get home I set the traveling Mac's sync back to Folder and it generally merges any new items or item edits I made during my travel with the network drive's OPVault.
Yesterday I was using my other Mac, which is always set to Folder sync, and noticed it only had 175 total items compared to 198 items on the Mac I use most frequently. I checked the 198 Mac's sync and realized I had left it set to None ever since I went on a trip over the December holidays. I concluded I must have added 23 new items while I was away and since I got home, so I locked 1P on the 175 Mac and set the 198 Mac's sync to Folder. I expected the 198 Mac's new items would be added to the OPVault, but instead the 198 Mac's item count dropped to 175!
Shocked, I set the 198 Mac's sync back to None and did a restore from its most recent 198 item backup. With 1P locked on both Macs, I deleted the OPVault from the 1P Sync Folder on my network drive, then I deleted the Data and Backup folders from the 175 Mac and replaced them with the Data and Backup folders from the 198 Mac. Finally, I opened 1P on the 198 Mac and set its sync to Folder, which created a new 198 item OPVault on the network drive.
When I opened 1P on the 175 Mac, with its sync already set to Folder, it worked fine and showed 198 items.
1P is working fine today, with both Macs set to Folder sync and showing 198 items.
Can anyone explain what may have gone wrong when I set my 198 Mac's sync back to Folder after it had been set to None for a month? Do I misunderstand 1P's syncing algorithm, and should I not have been surprised when the traveling Mac's item count dropped from 198 to 175 when I set it back to Folder sync?
Merging OPVault items after travel has always seemed to work fine in the past, so I am wondering if there may have been some special circumstance that caused the sync process to function differently in this instance.
One possibility is that I did try a trial of the account version of 1P before my holiday trip, but I ultimately stayed with the non-account version. Could there have been some residual from the account trial on the 175 Mac, and in the OPVault it synced to my network drive, that caused this result? Or, were there upgrades to 1P for Mac that I installed on both Mac's during late December and early January, while one was set to Folder and the other was set to None, that could have caused this result?
PS I have El Capitan 10.11.6 and the latest versions of 1P for Mac on both Macs.
1Password Version: Not Provided
Extension Version: Not Provided
OS Version: Not Provided
Sync Type: Not Provided