Won't stop indexing on Mac

Konigi I understand what you're saying, and I partly agree. However, let me add that large companies perform necessary tests beforehand precisely to avoid these issues. Take Adobe, for example, as I use one of their paid software suites. I haven't encountered a single problem, not a glitch. It's like nothing happened. Moreover, let's remember that MacOS Sonoma went through several betas before its release. So, Dropbox isn't discovering this just today; they should have known for at least 8 months. Why am I saying all this? Because what I'm witnessing, to me, is unjustifiable. I've paid for a service I can't use, and there's not a word of apology or a request for patience from anyone. I find this behavior truly ridiculous. Dropbox has let me down. I never expected something like this, and, in fact, I can say that in ten years, nothing even remotely similar has ever happened.

CHRISTIAN ARCOS this is a very serious matter. If I were you, I would have already filled the Internet with this issue. I've already done so regarding the MacOS Sonoma speech.

What is happening is unacceptable. I repeat, there are people who are paying for a service that isn't working. We work with DropBox here, this is no joke. Furthermore, DropBox shouldn't take these matters lightly. If the news gets out in the press, there's a risk of losing in the stock market, and those are real problems.

For over 20 days now, since the MacOS Sonoma update, I've been unable to use Dropbox. This means no more backups, no more file synchronization, no more sharing documents with colleagues, and no more convenience for me. It won't be long before my hard drive fills up, and at that point, the only way I'll have to clear space is by returning to the old external hard drives I had abandoned, favoring a paid Dropbox account.

It's been quite a letdown, and I'm very disappointed.

I RECEIVED A SOLUTION FROM DROBOX THAT WORKED!

To ensure that Dropbox is working correctly, I'd recommend that you rebuild your configuration settings by unlinking and relinking your Dropbox account to your computer. This will restore any settings which may have been changed without affecting or removing your files.
 
Please follow these steps to unlink and relink your computer:
 
1) Right-click the Dropbox icon in the system tray, or menu bar, by the clock.
2) Click on your profile picture or initials to the right of the search bar, and select "Preferences".
3) Select the Account tab.
4) Click the "Sign Out" button in the Account tab.
5) Your Dropbox will then prompt you to re-enter your account information.
 
Your account will then take a few moments to re-index your Dropbox folder, and sync any pending changes before returning to normal activity.
 

I did this.  On the first attempt, my 29,000 files were re-synched but stopped at 352 files.  So, I repeated the process.  I signed out then signed back in and ALL THE FILES SYNCHED.  I am back to where I was.

In retrospect, it seems a logical maneuver.  This is what we do when our laptop or program locks up.  Just sign out, give it a moment, then log back in.  Good to know for the next update.

GOOD LUCK!

Konigi your deduction is based on what, exactly? Frankly, I've never heard of issues with specific apps being solved by the company that produces the operating system. Usually, it's the other way around.

CHRISTIAN ARCOS I've tried it 4 times, twice on two different Mac's.

It's dismal.

DBox staff response to me that Sonoma and DB work fine together, it is love at first sight

Forgive me, but has there been an update from Dropbox that fixed the issue, or are you being sarcastic?

CHRISTIAN ARCOS did you try to recover them by DropBox web site? If you have a Premium account you should be able to do it. Nothing can be deleted immediately. 

The 185.4.6054 Dropbox update in my case brought back thumbnails for most files. I'm happy this is working again. But along a few old bugs, such as receiving an alert such as "Can't bring these files online-only as some of them are still open" (they aren't) and Finder being more sluggish than it was. And I have more files which are still "Synchronising" for a couple of hours.