Custom Moodlets Not Displaying

Hi basically the title. I have created a few custom moodlets in a mod by basically trying to follow the same template as moodlets that replace other moodlets if a sim has a specific trait (e.g. Ambitious sims getting +3 happy emotion when getting promoted as opposed to a +1 happy emotion) it appears that the emotions are being replaced and applying the correct emotion but the icon isn't displaying on the moodlets bar. I've currently made 5 custom moodlets and all of them have the same issue. I was wondering if anyone else had this issue, and if so, how did you fix it ?

If I haven't linked something that you need I'm happy to, thanks for helping  . 


She has the right buff, with the right emotion but the icon thingie isn't appearing.