I've got some problems while running a Unity game. When I first launch the game it's still playable, but when you switch to another window and switch back, you can see the graphics but can't interact with the game. The game's animation is still running and still playing sound.
Back in the day when I was playing Hearthstone, it has a black screen problem. Then I searched online for a solution, which I input a command into the Battle.net launcher, which forces it to run with DirectX. If I need to configure in the game folder, which is inaccessible for you, the game's download link is here! Thanks for helping!