Well there's a few weird things about this. The Construct 2 events are actually doing what you asked, I would expect the animation to loop. Construct 3 must think you're still on the floor for some reason but I can't see the video for that. That event isn't needed anyway, if you have an event that says on fall set animation to fall then you don't need any additional event saying if not on floor and falling then set animation to fall, which runs every tick and will be seen to loop.