uneven sheen on tiles
I had 20" Emser Lucerne Alpi glazed porcelain tile installed about 1 month ago, and the sheen is uneven across about half of the tiles. I am unable to clean it so that the sheen is even. It looks dirty all the time. I hope the attached picture is adequate. It is difficult to photogragh. It looks to me like a problem with the individual tiles themselves, rather than grout haze. I think if it were grout haze the sheen pattern would flow from one tile to the next. Instead, the sheen pattern stops and starts at the edges of the tiles. It's a nightmare!
Has anyone seen this problem before? Please help!