Sync stops working randomly and cannot be restarted without new sync chain. (Bookmarks no longer syncing, send to device no longer working reliably either.)


Thanks for sharing, I am working on this issue now.

Here are some techinical details.
TRANSIENT or CONFLICT error is returned when the server doesn’t accept the client commit.
It usually happens when the server has object older than client tries to send. Client should download the newer object form server, merge and send updated back to server is required.
Also there is a recovery procedure which is fired on 7th failed commit and then client re-reads all the records of specified type PR#8201 and forcibly does all the required fixes and resolutions.
Somehow both of these didn’t help. I’ll try to figure out why.