-1. What is this fpt I keep hearing about, and how do I activate/deactivate it?

-2. So, I have duel flames, and I bought the flame texture as well (not knowing what it did)
I don't enjoy the way it emits textures from the flame, so I deactivated it but it's still doing it... I even sold the flame texture in hopes that it would turn it off... Still doing it! Could someone help me with that please?

Thanks in advance.