assassin's creed unity nostradamus enigma aries last riddle glitch (PS4)

[kule]

Yahoo answers wont let me post this so i took to steam to ask it,

im on the last riddle of aries (the bridge one) i also had a video guide open (https://www.primagames.com/games/assassins-creed-unity/tips/assassins-creed-unity-nostradamus-enigma-guide-solve-riddles)
i can see the symbol on the guide but not on my screen i am in the same place


pls help