Mouse oddity with default OSMC skin

I’ve just updated a RPi2B+ system from the Sep release to the Nov release (2016-11-1). Initially the mouse cursor appeared as a ragged narrow horizontal bar, but this changed to standard appearance on reboot.
I then discovered that, whereas the right click in most menus will take me back, in My OSMC I have to left-click on the central OSMC symbol to go back.
This is no worry to me - I just note it, in case it affects anyone else.