I have a problem with render on android OpenGL ES2.
The Skeletal Mesh is not being shown on the OpenGL ES2.
but on OpenGL ES3.1 and Vulkan works.
Welcome to the club! =)
Have you checked out this topic: https://answers.unrealengine.com/questions/848288/view.html ?
It starts with mobile platforms, but others are there too.
Maybe you’ll find something useful there, but don’t hope too much.
Thank you