The problem: on android when plugging in headphones sound continues playing from device speakers, not from headphones. But in case of launching the game with headphones everything is correctly. I tried to use DEVICELISTCHANGED callback but when I plugged in headphones it wasn’t invoked. And system shows only 1 driver. But the same callback works on PC build.
I noticed that when I was plugging in headphones sound’d stopped for an instant and continued work with speakers.
FMOD 2.00.07 and Unity 2019.4.4f1.