Nautilus hangs sometimes while copying and I've to press restart switch!

Sometimes While transferring data with USB stick (pen drive) or from one partition to another in HDD, nautilus hangs.
If I tries to cancel file-transfer it doesn't!. At the time I was unable to open terminal or even tty (Ctrl+Alt+F1)!
Hence I can't kill (killall or xkill) nautilus and I've to press restart switch or Alt+(Print Screen(SysRq))+RISUB.

However this not happens often; mostly I face during transferring (with USB drive) medium to large size data transferring (I mean small data :0-100 MB , medium data: 100MB to 1GB , Large data: >1GB (rarely) ).

Now I use grsync which works fine (perfectly without any problem). I experienced this problem with various USB stick (and sometimes within HDD from one partition to another partition). so it seems nautilus problem.

BTW, earlier when I used to use Ubuntu, I probably not faced such problem with nautilus. now problem may with another (nautilus 1:3.10.1-0ubuntu9.3+7.0trisquel13) version of nautilus or trisquel(gnome flashback)-nautilus integrity.

Should I convert/move/add this to issue?