Eject action using udisks2 fails with pendrive. No information is give except on console log output 

I have  8GB pen drive (sdb), with a single NTFS partition (sdb1). When using udisks2, actions for that drive include umount, eject, and detach. If I click eject, I have this on the console:
failed to eject device /org/freedesktop/UDisks2/block_devices/sdb

I think this kind of fails should be shown on a libnotify notification. 

I can umount or detach without problems.