Exact same issue for me. Nothing but bookmarks will sync and I’m seeing the same errors as you. Completely uninstalled, cleaned and reinstalled multiple times with no joy. Have you made progress yet?
@yukira99,
There are currently some known Sync server errors that the team is working on addressing presently. Will try to reply back here when I have more information about the issue or when it is resolved.
Think same thing here just added a new device to chain but it won’t sync passwords - bookmarks fine (yes I told it to sync everything). Other devices show Download Step Result Success this one HTTP Error 504
Same issue in Ubuntu Budgie 22.04 LTS with Brave Browser 1.65.114.
This issue seems random because I reinstalled the system four times on two different devices in the past 48 hours and the sync function sometimes works sometimes doesn’t.