Baked Lightning leaves a weird shadow on object

So I'm having this problem and I can't find solution for it. I'm currently creating an apartment kitchen at night time environment. When I try to generate lightning, I can see for a second how good an object looks (picture1) and then after 1 second it gives this weird darkness to object (picture2) and then baked lightmap changes. (I presume it's some kind of shadow but I don't know to turn it off). I'm using Area light. Any solution?