Skeletal mesh exported from Blender auto rigger pro is invisible in mobile preview after updating to 4.21 as well as 4.22

I have used blender auto rigger pro to export Skeletal mesh with default Mannequin skeleton that works great in unreal engine 4.18 as well as in real mobile devices. But after updating UE to 4.22 all skeletal meshes are visible only in pc and after exporting apk to real mobile device, all skeletal meshes are invisible.