Why is bright albedo texture automatically emissive?

The circled textures do not have emissive properties, nor do they have a map defined as "_e" yet they all glow just because their albedo is very "light" or white in the ring around the fan case.
I swapped them with another slightly darker texture and they stopped glowing.
I'm using SEUS HRR 3 and with Optifine (where I designed this mesh in) these parts were not glowing.
Anyone knows about this?