It's possible to clean old texture from the scene? For example, i load "texture 1" for victoria4 after some renders i decide to change it for "texture 2". OK i load new one but when i render the scene i see that the "texture 1" is also loaded, is not used but is loaded. How i can delete all these texture? i try to use "reload texture" but don't work :(

Forgive my bad English please :D

P.S  I try to search, but nothing.