Model Geometry goes haywire when deploying on Android

Si I’m deploying this scene onto a Samsung Galaxy S5 Android version 6.0 (Marshmallow), and this is what happens:
On Unreal:

On Android:

Has anyone met this problem and managed to work it out?

Did you find a solution to this problem ?

wow this is old! But yeah. It turns Android simply cannot support too complex meshes. Breaking the mesh into parts solved the issue. However, a little bit later after that point the scene just got too big for smartphones to hande.
You can see the final product, for PC, here:
http://www.shahafshaked.com/thesecondtemple

Thank you so much that helped a lot !