Database on DTTG lost connection to DTG

Hello, I’m writing with an issue that I hope I can explain clearly enough. I am running DTTG 3.8.15, and I have a database called “Research” that I’ve synced to DTG using Bonjour. The sync was not working, so at a certain point I turned the database back “off” and then “on” in the “Locations” menu. Unfortunately, when I did that, this created a new, duplicate “Research” database in the app, which only downloaded files from my computer. The old database contains various new files and other updates that I want to sync to DTG. So I went and deleted the new database, but now it seems that I have just severed the link to the database on the computer, as (I think) the attached screenshot shows. How can I get DTG to talk to the original database on DTTG again?

I apologize for the somewhat garbled nature of this post, I am doing my best to explain what happened here. I will be glad to provide more details.

What about turning that toggle on again? As long as it’s off, you won’t sync this database

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This brings back the duplicate database, in other words the one that is synced to DTG, but does not include the new files / updates I made in DTTG. Attaching a screenshot for ref.

This is what the manual says:

It seems strange that the local “Research” database is not listed among the available databases…
Did you perhaps set up your iOS device as a Bonjour server? (Settings > Bonjour)

(This post I’m quoting here is a good read in general if you have trouble with Bonjour.)

Did you compare the UUID of the two “Research” databases? Are they identical? (You can long-press a database and copy the item link)

Did you try a Verify & Repair on the local database in DTTG?

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Thanks for this. The iPhone is not the server, Bonjour is not enabled in DTTG.

The UUID of the two “Research” databases is the same.

I read Jim’s guide, and followed the various steps in the troubleshooting section, including removing the sync location on my phone. Still, when I add the sync location again and enable the “Research” database, it produces this duplicate copy.

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You should stop what you’re doing, quit DEVONthink To Go and DEVONthink, and immediately update to DEVONthink To Go 3.8.16.

Also, I hope the backups on your Mac are current.

And you can open a support ticket too.

Oh damn, I forgot to look at the version number!

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Upgraded DTTG now, and it seems that the overall situation is the same, in other words I am syncing to the duplicate database.

The Mac database doesn’t reflect the content I created on DTTG, but I could transfer over most of those updates manually if I had to.

Noted about a support ticket!

That is correct. Moving to 3.8.16 is an emergency measure not a resolution. Damage still needs to be assessed.

The sync was not working, so at a certain point I turned the database back “off” and then “on” in the “Locations” menu.

This is actually what caused the issue in 3.8.15.

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