DXF not imported

Hey, to facilitate construction of a grated part I wrote a little python script to place an array of circles using ezdxf. The resulting DXF is consumed just fine by QCAD. But nothing happens in Shapr3D, beta or regular. Find the file attached.

Eh. Can’t attach Dxf. Here the Dropbox link: https://www.dropbox.com/s/12foq33tjhuzlbh/20x20-5mm-circles-qcad.dxf?dl=0

Any suggestions?