Importing Geometries

Hello,

I'm new here, I hope my posting is appropriate!

Currently I'm trying to set-up my project and importing geometry from STEPs. I created the geometry myself with CATIA v5. When I import it in HW (HyperMesh... HyperWorks) then I get strange connecting lines with dots. It looks like these dots are not 'nodes'.

Here is a screenshot of a few examples, I hope it's clear:

Can anyone what these nodes are?

Do they affect my analysis?

How can I get rid of them?

Thanks a lot and have a good weekend,

Dave