Epic, just a bit more info on this (we’re the tutor).
We’ve built the game for win64, tried standalone, PIE, and all of these builds work, the aliens 1 to 10 + other meshes show properly. Once he launches the game ASTC Android to his phone the aliens, except 9 which works, don’t show up. I’ve went into the materials and meshes itself and none seem to have immediate issues or any differences between the working and non-working one, now art isn’t our field of expertise so we’re not really sure why this is happening but seems to only happen when in AR. Now on code, there’s nothing that would indicate that these items would disappear in AR and show in Non-AR.
If you need more info, feel free to ask us or smudgy directly.