Windows Task Scheduler has never worked with AOMEI Backupper. It flat out refuses to run a scheduled backup (on multiple PC's). Fortunately AOMEI has on option to install a service to schedule backups. That may be a program issue, I don't know.
I have same problem with AOMEI Backupper Professional. I use Windows 10 prof but the scheduler does not work when I set system shut down. This process do not run and do not make anything.
Altough when I set daily or weekly backup there is work normaly.
Furthermore I found an interesting thing: I installed Acronis True image 2018 and when I set Acronis schedule to make a backup when I put shut down than runs the Acronis backup process and also run the Aomei backup process.
When I turn off Acronis shut down process than Aomei backup process does not work in shut down.
I dont know what is the problem and what is the solution. As a matter of fact, it is very annoying.
I have been trying this problem for 3 days.