Unable to view usb drives in nautilus does'nt automount

Whenever I Plugin a USB drive it doesn’t show up in nautilus as it does with Opensuse Leap 42.1 . I never had such issues. To mount a USB drive I need to open Gnome -DISKS app and then click the mount button to view the contents.

How to make SLED 12 SP1 show the contents of the drive as soon as I plugin the USB drive to the port?

Thanks.

This issue is solved. The reason why the USB drives were not visible because it were all of UDF bootable drives. Once it was formatted to FAT 32 it was visible