Okay I finally managed to complete the mission. So if you got the third shelf in the middle of the room and completely out of its rail, this is what I did, step by step:

1. Destroy the jars and crates so you can move the shelf and push it as close as possible to the rail
2. Do whatever you want (save and load, fast travel, ect.) so when you're back the jars and crates are back and the shelf in the air, but right next to its rail
3. DO NOT destroy the jar(s) keeping the shelf in the air
4. Destroy the rest to move more freely and get rid of potential obstacles
5. Throw a body at the shelf to push it towards its rails, at some point a small part of it should fall on the rail
6. Keep throwing the corpse until the shelf is back to its initial place
7. If you pushed all the shelves the way you're supposed to, the man should thank you and go outside (I'm not even sure that's required, when I did it he thanked me as soon as the third shelf was back in its railing)

I hope it will help those who are still struggling with that mission.

To update, I have now completely exhausted all suggested workarounds. The problem for me is the NPC just stays in his starting position muttering the same sequence of dialogue and is not even highlighted in blue when using Odin’s sight, which he should as all world mystery components always highlight in blue. The game is somehow displaying the NPC but appears to have removed him as an active component of the mystery. I have spent easily a few hours trying workarounds and my own attempts and ideas, all to no avail.
I sincerely hope this can be addressed and fixed as it is clearly a widespread issue with numerous things that can go wrong with the world mystery itself.
Very frustrating when I have cleared all areas 100% bar this one single thing

So I am currently stuck on my quest to 100% Valhalla due to a bug in the game, when trying to do the Lunden near the docks quest were you need to move the jar filled with the horrible smelling sauce to free the trapped owner the world reset but the movable crates are off tracks and it won’t allow me to complete the mission.

please respond back and I will add photos as well

@corn3r_pock3ts I have also gone to Norway and then save relaunch game with hopes of resetting the map but it won’t reset it when I come back please help!

I also have this issue. Had it before and after the patch. I've several times done other things for a while and then came back but it's still the same.

@camdood10 @Ubi-Spud I am having the same issue. first the guy didn't spawn, a reload got him to spawn, then I cant move the stuff around. I smashed all the jars, I moved all the jars, the one that I cant move is the very first one. I can slide it all the way one direction but cant move it completely out of the way. Can capture some video if you would like

@righteouskill10 video link

@threeinonejdd
I could bloody kiss you, what a mad lad, appreciate you very much

Okay thought it had worked by using a dead body rag doll to make sure the movable shelf was in place to move. Now the NPC is doing nothing when I clear the path. I’ve tried restarting, I’ve tried going out of simulation, while standing at back of house, nothing. Please fix this!!

@ubi-baron Any idea if we can 'force' the man to actually be there? Literally all I have left to do.

There is a warehouse near the river that has a mystery I cannot start. There are movable shelves and blue vases that make Eivor Vomit when they break. There is no one to talk to and the first movable shelf is stuck. I pulled it towards the open door and it is now stuck in the sacks that r on the gound. I cannot move it back into place or any other direction.

The other mystery im having an issue with is A Rivalry for the Ages. I talked to the girl and she has the guy distracted but there is no key where the key icon is placed.

So after having a few issues myself..

1. Make sure to finish the Lunden arc before trying this mystery, he appears after doing so
2. If you start it before this point (like i did) and the shelves get stuck(after destroying or moving jars), i can confirm that throwing a dead body at the shelves helps unstick them. Theres a guard by the docks you can kill and use.

if you get stuck on the very last set of shelves like i did where they won’t move fully to the right, keep throwing the body on the smaller edge to force the shelves right, eventually this moved it enough to unstick the shelves so the move option came back up and i was able to finish the mystery.

hi,

I went to Lunden before the main quest line brought me there. On the harbour there is a warehouste with plenty of blue jares and moveable shelves. I moved the jars around the place so as to move the shelves, only to find nothing behind. So I moved on.
Later, I went back to Lunden during main quest line, and now there's a NPC blocked behind the shelves that I had previously moved, and he asks me to free him. Problem is, some of those shelves have been moved back more or less to their initial positions, and one just sit on some of the blue jars which happen to be roman garum, and they must not be broken because it smells terribly: https://imgur.com/a/eBj4lTp

That shelve cannot be moved so I cannot free the passage and the NPC stay locked behind, preventing the quest to finish.

@panini_ozolives Can you break the jars underneath the shelf with an arrow? I believe you can break all of them and the quest can still be finished.

@xilverix I haven't tried actually as the NPC explicitly ask to not break them, because the smell is terrible (I fear a toxic cloud if some are broken). I'll quick save there and give it a try.

Talk to him first, you can climb the wall, and then start clearing the path, even with crates on jars, it works just fine, just talk to him before clearing the path.

@xaimeeacidx I've tried throwing bodies every which way. I can now move all the moveable crates, the guy's here, but he's still not leaving