[What's the worst that can happen?]

Hi. I'm super new to 3d printing so I have no idea what I'm doing.

I'm attempting to make some wireframe-esque things. I started with some rings:

Which are basically bevelled curves in Blender.

I then tried to join them together.

After that, I imported the whole thing into Cura. In X-ray mode, all the intersections between the joints between the rings and the rings themselves show up as red.

Red usually doesn't bode well so I'm assuming that something will go catastrophically wrong during the print. Am I doing something wrong? If so, how can fix it?

Thanks in Advance!