Today after the dist-upgrade I was unable to mount flash drives.
When I plug my usb key I open SpaceFM and when I try to mount the usb key and this message appear:
udevil: denied 90: option 'fmask=0133' is not an allowed option
The solution is very simple:
I just had to edit (as root) / etc/udevil/udevil.conf, and remove every instance of fmask=0133, which gave me back USB device access.
I find the solution here:http://is.gd/QDSBi1