Red arrows from Waterways update have disappeared.

[hilf]

Zone cvw11.

First time i came here there were 3 big, glowing red arrows encouraging me to swim into them with my ski at full speed.
But it was too slow so i went to Core City to buy something fast.
Next time i'm in that zone there are no arrows.

https://steamcommunity.com/sharedfiles/filedetails/?id=2174441577