Oh yeah there we go. So your button doesn’t seem to call stop jumping, this is there to stop the player’s jump before it reaches max height, but also for the double jumping system you need to call stop jumping before it counts the other jumps, which is making you fly. So make sure your character has 2 jumps listed in it’s settings first, and then you need to be able to get the input up from the mobile events and pass that to stop jumping.
Your widget for the button has 2 functions for this already, On Pressed and On Released. Use that to call two different events on your player controller.
Hope this helps!