Avatar Hands Disappear When Idle

Hello.

It seems that having the Avatar hands disappearing when idle is the default behaviour.  Moving the hands slightly make them appear again.  Is there a way to configure the Unity Avatar SDK so that the hands are always visible?

Something on the libovravatar dll changes the visibility flag for the hands if we keep them still for a few seconds.  It's retrieved with this:

ovrAvatarVisibilityFlags visibilityMask = CAPI.ovrAvatarSkinnedMeshRenderPBS_GetVisibilityMask(renderPart);

Thanks!
Leo