Mould Generator

Dear Slicer Users,
I have a problem with brachytherapy mould generator. The created model is invalid and has “zero” volume, so it doesn´t exist. I just see it in the Data Module after creation.
Could someone confirm that this module works in Slicer 5.6 or 5.7 please?
I hope I didn´t do any mistake. Points, ROI and normal direction has been made in markups module.

Thank you for any idea.

Lukas