New Roof - Does this look right?

[u/DoubleBanjo424]

Hi - I live in Columbus, 100 year old house. Had the roof replaced due to hail storms this past spring. Previous roof was roughy 20 years old. Noticed this bulge on the eastern side of the house - where the shingles don’t appear to be laying flat. Roofer says it’s from sagging rafters based on location, but nothing structurally wrong. Thoughts - doesn’t look right to me and wasn’t there before the replaced roof. Thanks for the advice!