OPM U8 - Connect flanges with different facing

I follow the wiki below to enable connection between RF and FF flanges. 

https://communities.bentley.com/products/plant/w/plant_design_and_engineering__wiki/48771/how-to-configure-openplant-modeler-to-allow-flange-connection-with-different-facings

The issue is after enabling the mismatch, I can't place flanges with the same facing anymore, can someone from Bentley please have a look? Trying to place a DN100 RF weldneck flange on another DN100 RF weldneck flange from mEx-Opm spec raise error: "Components not compatible. Component properties do not match: FACING".

OPM 10.08.00.51

Best regards,

Tuan Le