Yeah I know what you mean ; I had the same frustration when I tested haha, and I think increasing the platform colliders size is the good solution. But I think it would cause other problems with the ground detector (used to avoid the player to jump again if he's not grounded) so I didn't change much things (as the jump was functionnal, but not perfect). Thus I think the problem was my Ground Detector, but I hadn't enough time to re-work it haha