For some reason whenever I use the subdivision or the smooth function there is an odd crease in the body and I cannot figure out the cause of this.
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I think you might have duplicate edges where those lines run down; I was able to make this with E + RMB to (incorrectly) cancel an edge extrusion before adding a 3x subdivision surface modifier:
Because of how deep those lines are in your screenshot compared to my sutured sphere, I also think those duplicate edges are no longer exactly on top of each other. That would explain why a merge-by-distance didn’t catch it (since I’m pretty sure you would’ve tried that already). Hopefully you manage to find something =)
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Yeah trying to merge it normally wouldn’t work, I ended up merging the two loops together and recreating the lost one which should basically work the same.
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Alternatively it may be some flipped normals.
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It can also be, inner mesh not shown or duplication of verts.
But I go with NP5, looking at the grey levels, it’s probably normals going the wrong way.
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