The case of the phantom torus.

[ErikHolley]

... good name for a band if you think about it.

Anyway, I saved a body to a mesh and imported into Cura.

This is what Fusion saw.

This is what Cura saw.

I went back and double-checked the mesh preview and Fusion does actually show the torus, but it's not selectable (part of the actual body).

There may be something approaching zero in there and giving us the phantom. Don't know. I went back and sliced it up, extruded, pull, recombined... and the problem disappeared. I've attached the Fusion file with both bodies. Perhaps you can determine what went wrong.

[jeff_strater]

Thank you for sharing the model, @ErikHolley - this looks like a faceting bug.  The strange thing here is - the bug only appears on "high" accuracy meshes, "low" and "medium" do not show this:

[jeff_strater]

It also shows up in the graphics area if you use the "display detail control" command:

[jeff_strater · Accepted solution]

I created bug FUS-96709 for this issue.  Thanks for bringing it to our attention.

[ErikHolley]

Thanks!