Create a filleted cuboid

[Peter-Christensen]

What am I doing wrong? I am trying to create a filleted cuboid. There seem to be two cuboids in the preview: an un-filleted one, and a filleted one (highlighted blue). Have I missed a step? How do I hide the un-filleted cuboid?

Thanks

[Peter-Christensen]

Here’s my system:

(wouldn’t let me add more than one image to the initial post)

[sovitek]

Hi @Peter-Christensen and welcome to the forum try turn your preview off in cuboid by length

[Peter-Christensen]

Wow, thanks! That was an unknown unkown, as Donald Rumsfeld would have said.