Skeletal Mesh not rendering on HTML5

Hi, I am using Daz Studio to create my Character to be used in my game, targeted towards mobile and web builds. The character renders okay in editor and mobile, but as soon as I launch or preview rendering for HTML5 it disappears.

I am testing in a blank project, and have removed all extra bones in the skeleton (total bones are 42 as compared to ~170 used by genesis 8). And I have resized the textures resolution. Materials are simple surface materials (as exported) and nothing fancy.

Any help would be appreciated, thanks!