It doesn't have any effect if you are just using items. There is an effect on the feature to reload the change in the script while Virtual Cast is running.
Following features will be disabled by default.
The VCI folder exists in the following path.
C:/Users/__USER_NAME__/AppData/LocalLow/infiniteloop Co,Ltd/VirtualCast/EmbeddedScriptWorkspace/__VCI Folder__
To enable the features above, tick on the following checkbox and export the VCI again.
Fixed the issue: When a SkinnedMeshRenderer and a VCISubItem is attached to the same GameObject, the SkinnedMeshRenderer does not render.