Our shingle roof is 2 years old, new construction home built in 2024. Minnesota. Noticed these ripples and waves in the roof… why does it look like this and is this grounds for a replacement or what’s going on with this home?

We have cracks stacked in the home in same spot on each level, top floor, middle (main) level, and basement. Warping wood floor in kitchen and buckling around built in fridge that’s separating. Moisture readings show 18-33% moisture in hardwood setting of pinless meter.

Prior to purchasing home our inspection showed issues on the roof… one year old at that time. Lifted shingles, a hole, multiple areas of damage, uncaulked rusted nails. These repairs were never made (builder assured us they were and we closed). The original roofer looked at the house and roof and confirmed those repairs were never made and did them a couple days ago. Did water get in? He said the attic looks like no evidence it did but I don’t trust anyone. He confirmed there’s a crack in the sheathing in the attic.…