Was that one of the rare (less than one in 60?) failures? Where did it end on way to:
although earlier I guess you wondered if you got all output. Did you get “Email sent”?
Sorry I don’t have profiling logs today to compare logs more closely with your logs…
Attempting to look at source on GitHub, maybe OnOperationComplete runs OnFinish
which runs SendMessage. After that it says (missing?) “Operation backup complete”.
send-mail command could be used in a loop if you’d like to see if it can have trouble.