I forgot to make interior windscreen banners for my latest liveries. Thanks to AbeWoz from pCars forum for noticing.
In certain conditions all texture files won't be replaced by Custom Livery tool. Added dummy files to trick the tool.
So check car #6 and if black stripes on it aren't matte, then download this update and install livery again using Custom Livery tool.
If they are matte then all files are replaced and no need to download this fix.