Estlcam v12.117 STL to Mask (broken since 119)

The first half of the video shows how to create a DXF mask (using Inkscape, Setup : Basic : Editor) that can be used to mask off parts of a 3D project. Currently v12.117 has to be temporarily installed to do this because it doesn't work since v12.119. The second half of the video goes through the same steps as the first using v12.125.