If you try to play a game while using a call app (LINE, discode, etc.), the call state will be maintained, but no media sound (game, video, etc.) will be played.
If you hang up from that state, the sound of the media will be restored.
Until recently there was no such problem.
I think that the impact of ANDROID10 can be considered in terms of timing.
Is there a person who is in this state?
Please let me know if you have a solution.