Can't remove shine from object [Solved]

Hello everyone

I've been hitting my head with this issue for a few days now, and I'd like to bring it to you to see if anyone can help.

I should preface by saying the CC I'm trying to fix is not my own, but I'm trying to make a custom version of the Build Your Own Toddler. I've reached out to the original creator but I think she's really busy and if I can spare her some time and do it myself than all the better

So my issue is basically this:



As you can see, the toddler is really shiny. I've already tried:
- Replacing the specular map, although it appears to already be blank
- Using the edge split as suggested in a different post here on the mesh itself

And neither of those things fixed the problem. If I've missed anything I'm so sorry, but I've been struggling with this for days now :(

Any suggestions? Also I don't know if this matters or not, but the type of lighting seems to have an effect on the amount of shine on the toddler:



As you can see it looks much better indoors. Any help is greatly appreciated