Why aren't my fillers dissolving? 1ml Voluma in chin 2 years ago

I had 1 ml of Juvederm voluma in my chin almost 2 years ago and noticed really pronounced migration and a heaviness to my lower face. I've had two syringes to dissolve it thus far on two separate occasions. I notice little difference after the Hyaluronidase. An ultrasound confirmed it's still in my face! It's migrated in such a way that I look like a ventriloquist dummy. Is this ever going to go away? It looks so boggy and awful, I just want my old face back.