In Shattered Gotham (Event): When Constantine spawns a jump sigil for you and you are catapulted to the floating rock with the tree, it seems you can collide in mid-air in front of the tree and fall to your doom. Also, if you use the sigil immediately after another player you can also collide in mid-air behind them, as if a wall is there and fall to your doom. The only fix I can find for this is to take your time; if someone uses the sigil before you, wait until they make it to that platform before making your jump. This ensures a greater chance of making it there.