If a joystick or gamecontroller button is down whilst the steam overlay is opened then SDL never receives the button up event. This means when the overlay is closed SDL (and the game) sees the button as still down until the same button is pressed again.
I am not sure if this is an issue with SDL or the Overlay but it does not occur on OSX.
I have also tried this with the SDL testgamecontroller program using the Steam Overlay and can confirm the buttons stay green after the overlay is closed.
If a joystick or gamecontroller button is down whilst the steam overlay is opened then SDL never receives the button up event. This means when the overlay is closed SDL (and the game) sees the button as still down until the same button is pressed again.
I am not sure if this is an issue with SDL or the Overlay but it does not occur on OSX.
I have also tried this with the SDL testgamecontroller program using the Steam Overlay and can confirm the buttons stay green after the overlay is closed.