Not necessarily. It means the operation (reading/writing) completed. Check Ubisoft Connect’s cloud save status manually. If saves fail to sync, the overlapped operation would log "Hasoverlappedoperationfailed," not "completed."
When Uplay (Ubisoft Connect) says the operation is "completed," but then crashes or stops, it usually means one of three things: Uplay Hasoverlappedoperationcompleted
My desire to play was overlapping with the reality of a 40GB update. My Sunday afternoon was overlapping with a mandatory password reset. Operation completed. Not necessarily
Because overlapped operations rely on low-level disk read/write commands, bad sectors can cause operations to complete with corrupted data. If saves fail to sync, the overlapped operation
ExFAT and FAT32 drives handle overlapped I/O poorly. Convert your game drive to NTFS for more reliable async operation logging.
When a Ubisoft game crashes, the client generates a stack trace. You might see: [Info] Uplay Hasoverlappedoperationcompleted: Cloud save sync finished. Followed immediately by: [Error] Access violation.