Dorico 6 freezes when saving

When I SAVE my work, I get the spinning rainbow wheel… and it can remain for minutes (the last time was about 8 minutes). If I elect not to wait, I can force quite after which my file does re-open. And it seems my recent changes have been saved, so I’m not losing any work.

I’ve restarted my computer, but this doesn’t seem to change anything. There are similar post from 2024 and 2025, but they don’t appear to be quite the same. I’ve checked my activity monitor, and the VST isn’t hanging, up it’s Dorico… it says “not responding.”

I’ve attached the file where this is happening, but it happens on any large file.

East of the Sun.dorico (1.3 MB)

I think the team would find your diagnostics more useful.
(Help>Create Diagnostic Report)

I made a couple of changes to your file and it saved here with no problem (on a very modest spec Windows machine).

What did you change?

I just randomly changed some notes and chords to ensure a different save.

Please upload your diagnostics - they will tell the team what is happening on your system.

Do you mean the diagnostics from the Activity Monitor? Or within Dorico?

Never mind… I found it in Dorico

Here’s the diagnostic file from Dorico.

Dorico Diagnostics.zip (1.7 MB)

I’m not an expert with these diagnostics, but it looks like your system has a problem saving to cloud storage. Does the file save normally to a local disk?

I have remote backup, but my working files are all accessed locally.

But when saving Dorico deletes your (no longer needed) backups and this seems to take a lot of time.

As I say, I’m no expert. Perhaps best for @Ulf to review the diagnostics tomorrow.

Ahhh… I see. I don’t remember setting the backup location, but it is located in my Synology system. It’s in-house, but still not local. I’m changing this right now to see if it makes a difference.

Just to say, yes, @Janus is right. In the Dorico logs are tons of lines like this:

2026-07-08 13:49:25.878 [info] Deleting old backup /Users/ddunning/Library/CloudStorage/SynologyDrive-OnDemand/Backup Projects/East of the Sun/2025-12-15 14-55-41_East of the Sun.dorico

Thank you both for you input! This was the issue. (it turns out we had a storm the other night and the power went out. My NAS drive didn’t restart.)