I tried doing a step export of my PCB, it shows fine in the 3D viewer, but I am told: “Unable to create STEP file. Check that the board has a valid outline and models.” How can this be?

Error on STEP export

der.ule October 15, 2019, 10:16am 2

The STEP exporter is a bit strict in regard to the contour (even if the 3D preview works fine) of the board as seen from previous posts.

Hope it helps