No smoothing group information was found for this mesh

I’m getting error when export *.fbx from blender to UE5 5.5.1:

No smoothing group information was found for this mesh ‘Cube_001’ in the FBX file. Please make sure to enable the ‘Export Smoothing Groups’ option in the FBX Exporter before exporting the file.

Before this I have worked with UE5 5.0.3 and everything was fine, but then I decided to come to the newer version.

If In Blender I select Smoothing Group when export *.fbx:

… then in UE my model is incorrect: