Can't change quality settings on Android

To change settings I use set overall scalability level and set … quality nodes. In editor and mobile preview it works fine, but when I build and launch game on smartphone looks like nothing changes, so when I set low quality level shadows don’t disappear and resolution scale seems like don’t working too. Before I tried do this via console commands, but got same result.
Does anyone know why this happening?

Same here, any update on this? It correctly sets the qualities on PC but on android it doesnt, it also defaults back to medium