For the past week or two, whenever I have attempted to do 'Island of Shrieking music' within Sis Laman, it will say 'minimum party size not respected' when I am a party of two. This is when I was a level 7 Wizard with Adhesive's "Artemis" and Liunaril's "Agurd".
*bump*
Had this happen the other day as well. Says party size says 2-8, but if you have 2 it tells you the party limit size is not respected.