Tyflow inadvertently smooths Building object

[3dsyn]

Hi,
Tyflow keeps smoothing my object although in max and in my created software (rhino) the object is angular.
It's a buidling and I can't have it smoothed like iTyflow is currently doing
Thanks for any help,
File attached
RM
Edit
I tried attaching a 3dsmax file I don't see it attached and now The tyflow forum says 438 kb remaining

[3dsyn]

3dsyn pid='9149' dateline='1639092351']Hi,
Trying to attach an image I'm also getting voronoi artifacts with extrustions going inside my building
RM