As the title says. Anyone able to explain to me like a particularly slow child why all of a sudden my rendering view with lights, etc... come out as blue and pink, whereas the material preview mode is correct?
the material preview mode generally uses pretty neutral world texture for lighting (some foresty HDRI image).
is your scene set to use some blue world material (or blue texture in the material?), eg. using the sky texture node which is cranked to very high emission strength?
edit: or have you perhaps accidentally made your sun -lamp blue?