Over 1 year post op and filler won't dissolve - what could be causing this and what are my options? (photos)

I had nose filler over a year ago and the tip of the nose showed that filler was there (it was shiny) but not red. I went to get the filler dissolved recently and filler was still present. I went and got it dissolve again and there is still filler present. See photos! Can you please identify if this is just stubborn filler that will need to be dissolved again or if this is a more serious case of tissue damage as the filler will not dissolve. Do I need to see a specialist? Please help.