Gltf file can not collision with Babylon Boxmesh

this is my gltf file,thank yousceneGreen1.zip (3.1 KB)

@11121, We definitely need a bit more info and repro in the playground for this. It is really inefficient for the community to all go and setup scenes differently locally and all come with solutions that may not be adapted. Having your repro will ensure we can all focus on the same issue.