I'm hoping someone can shed some light on this issue I'm having. It seems when I have to similar parts in my Spec, when I placed them, it wont let me select between the two. In the substitute part toggle, both items are selected and it wont let you deselect one. In this case its 30" Pipe. One is normal, the other has an added coating description. They are both from separate parts in the spec, the part use priority is setup. But when I place them both are selected and I cant choose between them. Does anyone know why this is or have a solution? Ive added a picture to show whats happening. Thanks