Continuous Database Backups

I have several sites using Updraft Backup/Restore and it runs without issue. All sites are scheduled for weekly backups, keeping the last 4 backups. One of my sites keeps running the Database Backup every 20-30 minutes whenever I set up the scheduled backups. If I place the backups in manual mode it does not do this. I suspect there is an old scheduled backup that did not get deleted for the database but I cannot find anything in the database. I would try uninstalling and reinstalling Updraft Backup/Restore but if I do this I will have to reconfigure all my sites because I do not have the S3 secret key for the bucket I am backing up to. (Yes, stupid mistake!)

Any ideas where I should look to see if there is a backup schedule that I can remove?