New drives

A few days ago I changed my 2 backup drives. They are 1 terrabyte each. Since then Macrium says that backup are successful. The log shows everything is normal and successful but there is no backup on the drive.

If I do it manually (right clicking on the "Backup Definition File" and use "run now") it will backup correctly.

Question: If Macrium software says the backup was successful, where are the backup files? ('[?]')

Thanks for your time

Jean-Marc