Following the brief combat section at the start of Lower City Rooftops (5 Bird Masked Archers) there is a wall-run, jump from shutter onto a long hanging chain (Shortly after a cutscene in which the Prince points out there are no more rooftops to proceed across and in his inner voice tells him to head down to street level).

The Prince will not slide down this chain for me, it's a simple down input and the noise of him sliding down the chain plays but he doesn't slide downwards, I'm physically unable to proceed past this point, is there some sort of solution for this? I genuinely love this game and the only problems I've had so far that weren't present in the original are some strange lighting issues until I hit this barrier, appreciate any help. :)

Edit: For anyone having trouble with this turning VSync on let me immediately proceed down the chain.