Created Unassigned: Alpha/Transparency issues with Crash Bandicoot [11909]

On OSX, using PCSXR 0.9.7 official release, I'm having alpha/transparency issues on Crash Bandicoot with the OpenGL plugin v1.1.78:

OpenGL 1.1.78:

SoftGL 1.1.17:


OpenGL 1.1.78:

SoftGL 1.1.17:


Are these known issues? Any way to fix?

I'm an OpenGL developer myself - where should I start looking if I want to try and fix these myself?

cheers
D