wireframe modifier, "escaping" vertices

[piepolitb]

hi everyone,
I got this hollow cylinder (just the lateral surface), that I want to be applied with the wireframe modifier, with relative large thickness

after the modifier applied, everything seems good

but the more I increase the thickness the more some vertices kind of run away

why is that happening? how can I fix it?

[Richard_Marklew]

Check normals
Check for no double vertices
Add the modifier and just delete the verts that are not correct

[piepolitb]

normal and doubles check done: nothing wrong

here it is the responsible (one of them)

why is bad?

[doublebishop]

You have even thickness turned on… and the only way that vert can make a wireframe as thick as the rest is if you move it up in space.

[piepolitb]

you’re right doublebishop!
thank you!