Missing/incorrect faces in displayed STEP file

[HuguesDelorme]

Description

The attached STEP file when rendered in Draw test harness is missing some faces, or are displayed incorrectly
STEP file to reproduce:
bldc_driver.zip

Expected Behavior

STEP file displayed correctly with DRAWEXE commands
With FreeCad:

Actual Behavior

STEP file displayed with OpenCascade is missing faces
With DRAWEXE:

Sample Code or DRAW Tcl Script

pload ALL
vinit
XNewDoc D
ReadStep D C:\PathToFile\...\bldc_driver.STEP
XShow D
vsetdispmode 1

Operating System

Windows

Compiler

MSVC

Bitness

64-bit

OCCT Version

7.8

Additional Files

No response

[dpasukhi]

*******************************************************************
******        Statistics on Transfer Process (Read)          ******
******        Check messages                                 ******
*******************************************************************
 Count  Check ** TRANSFER READ CHECK **
 -----  -----------
    16  W:ADVANCED_FACE: Missing seam-edge added
    10  W:LINE: Poor result from projection vertex / line 3d, line shifted
    30  W:(BOUNDED_SURFACE,B_SPLINE_SURFACE,B_SPLINE_SURFACE_WITH_KNOTS,GEOMETRIC_REPRESENTATION_ITEM,RATIONAL_B_SPLINE_SURFACE,REPRESENTATION_ITEM,SURFACE): Surface forced to be periodic
    73  W:LINE: Poor result from projection vertex / curve 3d
    27  W:CIRCLE: Poor result from projection vertex / curve 3d
    21  W:EDGE_LOOP: Edges were intersecting, corrected
     4  W:B_SPLINE_CURVE_WITH_KNOTS: Poor result from projection vertex / curve 3d
    Nb Total:181  for 7 items

XGetShape shape D 0:1:1:8
checkshape shape
On Shape faulty_1 :
BRepCheck_InvalidPolygonOnTriangulation
On Shape faulty_2 :
BRepCheck_InvalidPolygonOnTriangulation
On Shape faulty_3 :
BRepCheck_SelfIntersectingWire
On Shape faulty_4 :
BRepCheck_UnorientableShape
Shape faulty_3  on shape faulty_4 :
BRepCheck_SelfIntersectingWire
On Shape faulty_5 :
BRepCheck_SelfIntersectingWire
On Shape faulty_6 :
BRepCheck_UnorientableShape
Shape faulty_5  on shape faulty_6 :
BRepCheck_SelfIntersectingWire

Faulty shapes in variables faulty_1 to faulty_6

[dpasukhi]

bldc_driver_simplified.zip
File with only corrupted elements to read

*******************************************************************
******        Statistics on Transfer Process (Read)          ******
******        Check messages                                 ******
*******************************************************************
 Count  Check ** TRANSFER READ CHECK **
 -----  -----------
    48  W:LINE: Poor result from projection vertex / curve 3d
    27  W:CIRCLE: Poor result from projection vertex / curve 3d
     4  W:LINE: Poor result from projection vertex / line 3d, line shifted
    21  W:EDGE_LOOP: Edges were intersecting, corrected
     4  W:B_SPLINE_CURVE_WITH_KNOTS: Poor result from projection vertex / curve 3d
    Nb Total:104  for 5 items

TransferRead :