use flags=1 for 3DSOLID
@@ -1133,7 +1133,7 @@ class CreatorInterface:
raise DXFVersionError(f"{name} requires DXF R2000 or later")
dxfattribs = dict(dxfattribs or {})
if self.dxfversion >= DXF2013:
- dxfattribs.setdefault("flags", 0) # type: ignore
+ dxfattribs.setdefault("flags", 1) # type: ignore
dxfattribs.setdefault("uid", guid())
return self.new_entity(name, dxfattribs) # type: ignore
