I assume you are using Moneydances internal syncing engine with the syncing method Dropbox Folder. If you are using Dropbox Connection or Shared Folder some of the steps below will be different.
The best way forward is to reset syncing as follows.
When you sync you have one primary computer, syncing set up under FILE (MONEYDANCE on Mac) -SYNCING and the secondary computers, syncing set up under FILE (MONEYDANCE on Mac) - NEW – OPEN SYNCED FILE. Make sure your data set on your primary computer is up to date, all transactions synced on all three data sets.
Set primary computer “Sync Method” to “Don’t Sync” under FILE (MONEYDANCE on Mac) – SYNCING, then click OK.
On your primary computer use FILE (MONEYDANCE on Mac) – EXPORT BACKUP to save a backup in case something goes wrong.
Repeat steps 1 and 2 for the other two data sets.
On each of your secondary computers click on HELP (MONEYDANCE on Mac) – SHOW DOCUMENT FOLDER to open a file explorer, close Moneydance and delete your second computers three data sets “yourdatasetname.moneydance”.
Assuming you have Dropbox client installed using your primary computer in the Dropbox folder delete the folder “.moneydancesync”. Watch the Dropbox icon and wait till it states “Up to Date”. This can talk some time. Note on Mac “.moneydancesync” is hidden, try in your Finder window, typing CMD-Shift-G and then pasting ~/Dropbox/.moneydancesync/ into the box to unhide. If you can’t find “.monydancesync” you will need to sign into you Dropbox account delete “.moneydancsync” from there.
On your secondary computers check that in the Dropbox folder that the folder “.moneydancesync” has been automatically deleted. You need to give Dropbox a short time to complete this deletion.
On your primary computer under FILE - SYNCING, set your “Encryption Passphrase”, set “Sync Method” to “Dropbox Folder”, click OK.
Wait for Dropbox folder “.moneydancesync” and its contents to be created. Check the Dropbox icon states “Up to Date”. This can take some time.
On each of your second computers wait until the same Dropbox folder appears, again watch the Dropbox icon this time on your secondary computers and wait till it states “Up to Date”.
On each or your secondary computers starting Moneydance should open it in the welcome window, click on “Create a new account set”.
Select “Open Synced File” and use dropdown to select “Dropbox Folder” then click NEXT.
You should see a search screen headed “Select a synced document to open”
After a short search delay, it should then list your un-synced data set name used on your primary computer.
Highlight your data set name and click NEXT.
Enter the encryption password, the “Encryption Passphrase” you set on your primary computer under FILE – SYNCING.
Then click on FINISH. Wait for your data to be synced.
You may find a lot of old, maybe closed accounts or other accounts you have removed from the side bar reappearing in the second computers side bar. Use the “+” sign at bottom of side bar then ADVANCED to tidy up the side bar.
You should be able to set up syncing on the other two data sets in the normal way.
Primary computer FILE (MONEYDANCE on Mac) - SYNCING and secondary computers syncing set up under FILE (MONEYDANCE on Mac) - NEW – OPEN SYNCED FILE.
Thanks for this primer/refresh - it is a good time to do this anyway since
i will also archive 2019 and rename the files at the same time reflecting
the new year - while i get all the ducks in a row i think i will
immediately remove syncing from the errant computer
derek - your suggested course of action worked perfectly - thanks for
taking time to write - in hindsight i think the syncing problem was do to
on the one computer i was having trouble, for some reason i had decided not
to have dropbox open every time i turned the computer -
after starting over on jan 15th and re syncing everything between my three computers and three account databases - here i am a month later and discovered the same thing is happening - syncing is not working again - i discovered this when balancing my main account - i know it worked for a while - i am going to set it all up one more time - pulled a lot of hair out
If it is the same computer that is having the problem each time it suggests that there could be something about that system that is specifically causing the problem, and something most likely outside of Moneydance. It could be causing Moneydance to lose track of what is happening or have problems with obtaining data.
The possible problems are really a pandoras box. Anything from the Dropbox client not copying files through to network problems - intermittent link, faulty hardware, bad cable etc. I'm not completely sure of exactly how Moneydance handles time but I could even envisage system time problems messing things up.