I first installed UpdraftPlus v1.7.20 and sequentially upgraded to v1.7.35 without a hitch (thank you!).
Since upgrading to v1.7.40 my automatic backups "seem" to fail. I say "seem" because next to the time and date on each past scheduled backup listed it reports "(Not finished)".
At the end of each backup log is:
0000.008 (1) Abort this run: the backup_time parameter appears to be empty (this is either a one-time error caused by upgrading from a version earlier than 1.7.18 whilst a backup was in progress (which you can ignore), or caused by resuming an already-complete backup.
I can backup manually without a problem; it's only the daily automatic backup that seems to have an issue.
Perhaps related, I also no longer receive the automatic backup email reporting. I understand recent version require free plugin users to set the reporting email address to the site owner's. I've made the change and can see it effective in my admin panel but continue to receive manual backup report emails at my old email address.
Any help would be appreciated.