I think that is because of the lighting information that was removed because of changes to modeller objects.
Today I've disabled some of those modeller object changes to allow me to disable the lighting removal but there are some issues I still need to solve.
Unfortunately the code now in the public version contains an early version of some of the graphical updates that was merged in. But then the graphical updates went so much further it has become something that can't be merged in at all and for the new graphics we will be releasing new versions of all the tracks and most of the textures.
For this current update I just need to try and backtrack a little so everything looks OK with the lighting mostly restored, in a small patch.
I know there are more things to fix but I wanted to get this one out more quickly so we can solve the skin download issue that affects some people. Anyone else can also benefit from the restored lighting on objects.
Test Patch R11 is now available with more graphical fixes.
Changes from 0.6R9 to 0.6R11 :
More informative error report for "Unknown file transfer error"
FIX : Lighting restored to most objects (to appear darker in shade)
FIX : Some objects at Blackwood looked the same e.g. ads over pits
FIX : XR front lights were plain white in the recent test patches