Island Living - Issue With Task Completion

Hi, 

I just bought Island Living, however I can't do anything in Live Mode. Whenever I assign my Sims a task, they just stand there, and occasionally twitch? This applies to all tasks, I've tried swimming, gardening, fishing, cooking, social interactions, etc. This only happens with Sims in Sulani. I have no Mods, or CC. I tried repairing the game already. I'm really frustrated, I was looking forward to this expansion. Please help! 

Edit By Crinrict: Removed all-caps from title