weird

This is it's second year alive and it's first year in bonsai soil. I've let the roots grow into the pot below it to gain vigour. Before it was rooted in the soil below, the leaves were quite small.

My Father in law bought this lace leave Acer two years ago. This year the root stock pushed out new growth. Looked like a regular palmatum this spring. Then the leaves all turned upside down with leaf bottoms (now top) all pink. Can anyone help me understand what is going on? The root stock...