Hi,
Slicer added several holes to model - each hole is approx 0.5 to 1mm diameter.
Image of printed model, formware slice 1900 and 1900.png as examples…
The STL model does not have such holes in it.
I have no idea if these holes are top to bottom of model - or start and stop at different layers as only certain parts of the model are cut by the holes…but it certainly looks like a bug to me with teh slicing software…
Regards
Andy