I opened an existing database on my laptop and added an indexed file. I did not duplicate, or create a new database. This morning I logged into my desktop and I have two databases with the same UUID and a log file populated with “Duplicate database UUID.” entries.
I checked my Finder, and there is now a second database file in my home folder with the same name, that only contains the new indexed folder. The original database is in my home folder in a folder called “Databases” with all my other databases tucked in.
I will move the folder over to the right database and “Clean” the new one, but I don’t know why a new database was created in this scenario.
I am using CloudKit Sync. DTG3
I had a similar issue when updating Indexed files & folders after adding a file to one of the Indexed folders: duplicate files listed. In fact, the Index showed multiple duplicates. This was a couple of weeks ago now, and I corrected it by rebuilding the database and deleting the old database. I only report it now to let you know that this is not a completely isolated event. Mac-Mojave10.14.6, DT3.6.3