This is 100% caused by fast traveling out of the sewers. I did that the first time and you miss a few dialogs (probably some trigger variables) and come into the market from the wrong direction. If you exit from the sewers as intended you come on The Needle and the poor guy hes attacking from above.

If Ubisoft just disables fast travel from within the sewers during this quest it will fix this bug.

Good luck all!

I was lucky and had a save to go back to from before I entered the sewers. Did everything the same but found the intended way out and The Needle was attackable.

Great game Ubisoft - thanks so much!

Edit: Playing on PS5, in case that matters.

This is 100% caused by fast traveling out of the sewers. I did that the first time and you miss a few dialogs (probably some trigger variables) and come into the market from the wrong direction. If you exit from the sewers as intended you come on The Needle and the poor guy hes attacking from above.

If Ubisoft just disables fast travel from within the sewers during this quest it will fix this bug.

Good luck all!

I was lucky and had a save to go back to from before I entered the sewers. Did everything the same but found the intended way out and The Needle was attackable.

Great game Ubisoft - thanks so much!

Edit: Playing on PS5, in case that matters.