Reference by Type not working for Brep and Surface in Beta

I have installed both EleFront v5.0.2-beta and eleFront-Rhino-6-Legacy and I’m using Rhino 7.

The rhino file contains1437 polysurfaces, 8 extrusions and 2078 surfaces.

However, when using Reference by Type in Beta version:
Brep, error: 1. Solution exception:Object reference not set to an instance of an object.
Surface, error: 1. Solution exception:Object reference not set to an instance of an object.
Polysurface, successfully referenced 1445 Brep
Extrusion, successfully referenced 8 Brep

Does anyone know why “Reference by Type” is not working for Brep and Surface in this case? Thank you.

Update:
I used the R6 legacy version and the issue is resolved. The issue seemed to be bugs in Beta version only.