Just launch the pbo already packed, spawn the test_box. classname is Land_test_box.

Point to it, use K for hiding animation.
Use J for translation.

You will see when using translation, geometries are moved correctly. But when hiding, you can't see it anymore but geometries are still here.

You can see it's still here, because I made a script to raycast inside view geometry, and put the name of raycasted component. and see, even if hidden, you can see still printing the name.

I just want to add something, if you open the model in buldozer, and go through each lod and test hide animation, you see the part hiding correctly.