Ever do a heist and you get to a checkpoint, die, but one person has a bug where he still sees his characters face on his screen and you all have to kill yourself to restart it again just to have another person get the bug?
Well I am not sure if this is a super well known fix but I kind of figured it out just out of frustration.
Simply hit Alt+Enter. It is the hot key for gta 5 resolution switch. And hit it again to put your resolution back after the bug goes away. Hopefully this fix saves you as much time as it has saved me.