I havent done anything different to my normal paints that have went on without problem so it seems strange, if it helps whenever the German C. Black Brown had the bleached bone in it it was fine, but whenever i had more of the Bleached bone whenever i mixed it on my palette they seemed to almost split into 3 layers and i had to keep stirring them up to keep the colout consistant, perhaps whenever i applied to the mini the paint has started to split slighty.
No worries, i was just wandering if people had ever had similar problems.