I've made a new race similar to the Ash Hopper and have several of these critters in game. I made a new disease, Magic Effect and Spell, to be contracted from contact with the Hopper. I followed a tutorial rigorously from the Wiki. The disease is a constant effect. I've altered the attack data in the new race so that the Hopper gives the player the new disease not the default one which is "Droops". In game when attacked by the Hopper the player still gets "Droops".

I've followed the tutorial step by step and don't see what I have done wrong. Help please.

Edit: Just formatted PC now I can't paste URLs. Weird.