Android (ASTC) with opengl ES2?

Hello

when I package for Android (ASTC) with opengl ES2 and ES3.1 it work on my tablet.

but if I package for Android (ASTC) with opengl ES3.1 only, it don’t work.

I’m a little bit surprised because I thinked ASTC worked only with ES3


My tablet have a ARM Mali-T720 GPU and support opengl ES3.1 :

ARM Mali-T720 - Benchmarks and Specs - NotebookCheck.net Tech


So I don’t understand, Is it possible than my tablet don’t have enough memory (2Go) to work in ES3.1 ans use ASTC with opengl ES2 ?

My apk name is MyProject-Android-Shipping-arm64-es2.apk

Does this mean it’s opengl es2 only?