Combine Models Unable to execute correctly

I load two models Result Part_1 is part of the “静脉” Model, then I do A-B on both models, but the resulting model is empty. I have to add A transformation to one of the models and move it around, and then do A-B to get the right result

It feels like when you add two overlapping Models, you can’t use Combine Models directly, you have to move them around before you can use that module

You can submit an issue to the vtkbool repository, providing download links to the two meshes to get information about why the operation fails. Maybe it is due to almost all faces of the meshes coinciding.

Yeah it looks like vtkbool doesn’t work when set a is a member of set b.