It looks like the Dropbox app updated itself on all three of my Macs yesterday (about midday GMT) to 195.4.4995.
Since then, I've had issues syncing files created on my M3 MacBook Pro. Specifically, it seems that with files of a certain size (approx 1MB plus) and PDFs (of any size), the sync never completes. If I copy those files to either of my Intel based Macs and then move them into the Dropbox folder, they sync immediately.
Is there a problem with the Apple Silicon version of this release? Although it has the same version number as the copy on my Intel machines, I notice the file size is different so I guess it's a separate Apple Silicon binary?
I'd welcome any suggestions please. I've tried pretty much all of the usual fixes (Fix Hard Links, Fix Permissions, restart the app, restart the machine) and I've even logged out and logged back in, which (rather irritatingly) created a brand new Dropbox folder and resync'd everything from the server.