So, I have to take all my albedo and turn them into 8 bits, then re-import them, then relink them into the material? Thats inconvenient. Why let us import 16 bits png if they are not supportedā¦ its a trap! 
Also the thing that bother me the most is some 16bits png albedo are perfectly fine when I turn off SRGB, but other just stay the same.