Please see the attached picture. please help to find why the seam showed up.
Not enough info given. How long installed? How did it just show up?Is it two different colors? Some thoughts. If it is the same color which I am guessing it is. It looks like the carpet is running two different directions. That is semi common I would say going from a hallway to a room with a door. It does look like two different colors of carpet. if so, of course you'll see the seam. It appears that some shearing is needed at the seam (Fuzzing a little at the seam)Something like this doesn't normally just show up overnight.Please respond with some answers so that we can give you more absolute resolution.