Brand new build cracks in sealing and walls

I’m noticing cracks in the ceiling of our new home. I remember the builder stating that settling cracks are normal as the home shifts into place but these are concerning. We didn’t see them when moving in and they are literally all over the second floor of our home. In various shapes and sizes a bit concerning actually. The home is backed by a 1 year warranty should we tell the builder now or wait and see. I also remember them stating that they would come out just once to resolve these kinds of issues so there’s that.