package xkeyval error in ytableau package

package xkeyval error in ytableau package

Hi I'm an absolute beginner to LaTeX so apologies if this is obvious.
I'm using the ytableau package to draw young tabs in Lyx. I loaded ytableau package in the preamble and I had no problems in drawing standard young tableaus/ferrers diagrams.
My problem is when I come to use the tabloids package option. Whenever I enter the command tabloids in the set up, for example:
\ytableausetup {boxsize=normal,tabloids}
\ytableaushort{ 123, 45, 6}
(lifted straight from the instructional pdf)
When I try to generate the pdf I get the error:
Package xkeyval error:'tabloids' undefined in families 'setup'.
Not sure what to do to remedy this.