You may have an issue with it doing the double jump at the same time when you only jump once, to fix this you can place a trigger and set the delay to 0.01 seconds and make it so when the switch turns on it activates the trigger and the trigger enables the double jump (input)
You may have an issue with it doing the double jump at the same time when you only jump once, to fix this you can place a trigger and set the delay to 0.01 seconds and make it so when the switch turns on it activates the trigger and the trigger enables the double jump (input)