bookmark board differs beween two devices and SERVER_RETURN_CONFLICT

pflegende

pflegende

Symptom

bookmark board differs beween two devices
Other devices (mobiles) not differ

Follow up here only now consisting things in the NOT-Synced device
(We call it now "M1")

initiate sync again and again -> solves not the issue
relogin again and again -> solves not the issue

monitoring the opera credentials:

identical account?
https://www.sync.opera.com
all devices = yes

some special parameters to see:

chrome://settings/syncSetup
ALL buttons blue aka "on"

opera://sync-internals
may be helpfull:
inside
"Status from Last Completed Session"
(in red)
"Commit Step Result SERVER_RETURN_CONFLICT"

System Information
Opera:
84.0.4316.31

Windows:
Edition Windows 10 Home

how to get identical bookmark.board,line again?

also open issue in opera - support, but no answer yet