All renders are over-exposed

Hello,

Since a while all my renders are very over-exposed. I'm using exact same settings as weeks ago and the lighting is very different, even same room and with 2K.

I can't attach photos for some reason.

I'm using deffault setting and both renders are with Generic ligthing. I've tried different enviroments and lighthings and is always over-exposed. How can I fix it? 

Thanks