I am having an addition built on my home. The framing is starting to go up and I noticed that one of the corners overhangs the slab by about 1 3/8 inches. I asked my contractor about it and he said it isn't a structural issue and that the foundation was poured slightly out of square. The corner is 1 3/8 overhang, but the overhang reduces as you go further along the wall, about 2 feet in it is less than 1/2 inch of overhang. The bottom plates are 2x6, so it appears like there is still good contact with the foundation.
It is winter right now, and the access to this part of the project wasn't the easiest. My contractor says this is somewhat common and that the pour had some challenges to it. Is this something I should be more worried about?
For more context, this is a single story structure being built. About 2 ft from the corner of this wall is an 18 ft wide 10 ft tall bifolding door, with a 10 inch transom, then another 3ft height of windows. There is a steel beam being placed above all of that to support the structure.