dxf file some problem

[Dylan-H]

I'm preparing to migrate from osg to vsg. I use osgviewer.exe and vsgviewer.exe to load the same dxf file. But the lines displayed by vsg do not have the original color。 vsgviewer.exe use assimp to load dxf

vsgviewer.exe use osg2vsg to load dxf,can not display anything

System environment： Win10 +VS2019 vsg，vsgXchange，osg2vsg , all are the latest master branch codes osg:3.6.5