strange thing

I often make copies with multiple buildings that have the same dimensions, and they only get new textures to save time. On picture strange1 you can see that it's going well, but on picture strange2 you see when choosing another texture file that there is a white haze over it on the texture sheet, you can also see this on the building
now I notice that the gamma is not shown for all other buildings and the gamma is set at 0.45 . for this building.
Does anyone have experience with this, does anyone know what is going wrong here?
can i change this?? the strange thing is that in viewer you see the building normally

 

Hi buddy, yes it works like that, but I did not know whether this also works well and it dont cause problems, to be honest I do not understand that gamma set up, but if it can do no harm then I use it like this

 

oooh thank you so much, I was afraid I had to recreate 5 buildings