I tried the VRM sample called “Posing the VRM” and hit an issue where the scene.metadata is null after loading and I cannot get the vrmManagers. Is something missing from the vrm file?
The babylon VRM loader is a community project.
It supports babylon 5, and seems to be ready to support 6.X, but it is not yet released ( virtual-cast/babylon-vrm-loader: glTF VRM extension Loader for babylon.js (github.com))
There seems to be a few open issues on the repository, and it will be the best place to ask.
Maybe @il-m-yamagishi has an idea?