Batman arkham knight: game stuck at stop Scarecrow from blowing up ACE Chemicals

I am playing Batman arkham knight PC version. I am not able to progress the game beyond the part 5, after rescuing the 4th worker from the ace chemicals. As per the walkthroughs, Upon entering back into the factory area there is supposed to be a cutscene with oracle, after which the wall with ACE chemicals logo is marked and can be broken with the 60mm cannon. But it is not working, I don't see any cutscene with oracle, or the marked wall. does anyone have a patch for this? How do I progress from here?
http://guides.gamepressure.com/batmanarkhamknight/guide.asp?ID=31008
Best Answer
I have completed this game twice. Once in simple story mode and then in new and hard mode. That mission is a tricky one as the whole game is.
You have to be at a specific location for that cutscene to get activated. So try to change your place as the same in the walkthroughs and only see the walkthroughs which are played on pc as this games is slight different then on ps4 and xbox.
So change the place slowly and do not run and you will get passthrough that level easily.
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How do you get out of ACE Chemicals in Arkham Knight?
These things are impossible to deal with head on, so instead grapple into a wall grate and slide down below to get under the militia guards, then preform a Fear takedown while the sentry gun isn't looking. Quickly walk over and disable the sentry turret, then find a nearby panel to break to open the doors.How do you stop the gas in Batman Arkham Knight?
Locate the gas pipe beneath the loading docks sign on the western-most wall, activate Battle Mode then use your winch to rip it in two. That takes care of your toxic gas problem, meaning that it's now possible to proceed deeper into the factory. Exit the Batmobile and grapple up into the room above the neon sign.How do I get rid of the neutralizing agent in Arkham Knight?
Activate Detective Mode and locate the chamber control terminal on the central panel. Interact with it to begin preparing the neutralising agent. Once the canisters pop out of the floor nearby, approach one and interact with it to gently pull it free.Batman Arkham Night. Stop Scarecrow from blowing up Ace Chemicals
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