@ rclassenphoto: I have written you a PM
@ KonstantinosD: confirmed, both Absorption and Scattering are working correctly with both Specular and Universal material, please post an example scene to better understand where is the issue.
@ M130: have you used the Empty texCache command from Live View menu Materials, or from c4doctane Settings/Other panel, before loading the scene in Live View?
ciao Beppe