I am using version 2019.3.0f6 with URP configuration. I want to use the Color Lookup option of the post-process Volume, but I can't export or configure the extura correctly. I get the following message: "Invalid lookup texture. It must be a non-sRGB 2D texture or render texture with the same size as set in the Universal Render Pipeline settings" Texture setting (Image): How should I set up the texture? In the URP documentation there is nothing about how to configure or export a lookup texture. Thank you very much!