Looks like a classic case of double vertices. Go into edit mode, A to select everything and then M -> Merger by distance. You'll get notified on the bottom if any vertices got removed.
1 love
Martin Bergwerf
replied
Could also be, that your Normals are inconsistent. After M > Merge > By Distance, (with everything (still) Selected (in Edit Mode), SHIFT+N.
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Omar Domenech
replied
And it could also be as simple as that the vertices in each of those points are ever so slightly pushed inwards causing the visual dip. Check to see if those vertices don't align with the curvature.