Lip filler

I’ve gotten my lips dissolved 4 times and still feel like the filler will not budge. I have restalyn kysse and juviderm in my lips (2.5ml). Has anyone else experienced filler just not dissolving with hylenex? I’m so desperate and am considering getting ultrasound guided dissolving at another clinic, but my injector is saying it could just be scar tissue so I’m not sure if I should even waste my money on that.