Objects (SM) appear and disappear randomly 4.20.2 google vr android

I followed your Google VR Quickstart guide, created a blank scene with pawn and added some basic white spheres. But when launching the scene on my Samsung Galaxy S7, the spheres randomly appear and disppear.
I tried the same in 4.19.2 and in the older version is everything OK.
I use arm64+OpenGL ES3.1 + ASTC Textures.

How could I fix this?

It’s I bug obviously. There is already a thread here: