... time. Took a proper controlled experiment to isolate it, keyboard-only setups worked 32/32, adding a mouse brought the failure back, removing it again fixed it, 22/22 clean. Turned out iOS was routing the command to the wrong place (SpringBoard, the home screen process, instead of whatever app was actually open) whenever AssistiveTouch was on and it saw both a keyboard and a mouse connected. We confirmed it's not specific to our hardware, it reproduces on a totally unrelated ...