Material parameter override value of priority mode is not valid

May occur when setting optimising and saw parameters

The priority mode which affects the order in which parts are placed on sheets can sometimes be overriden for a specific material by using 'Material parameters' but this method of override cannot be used for every optimising situation.

Rectangular nesting - This parameter is not valid

Shaped nesting II - Ignore priority, Priority modes 1 & 2

Shaped nesting - Ignore priority, Priority modes 1-4