Afternoon,

So i have recently been playing assassins creed Valhalla and i only have Hamtunscire territory to complete and have a noticed a few things i would like some help with.
i have started a new game to make sure these are missing or just a 1 time occurrence.

1. There seems to be a glitch in the devilled water quest in Jorvik, the guy on the boat is not there to be pushed in the water. i have started a new game and 
  loaded a previous save he is still not there.
 
2. There is an artifact missing in cent, it does not appear on map and again i have started a new save and it still is not there.

3. There is also a artifact missing in Oxenefordscire, again does not appear on the map.

4. There is a missing wealth item in Hamtunscire in Hamtun Blockade, im assuming its on a guard but ive killed the big guy where it is and you dont collect it.

As stated above i have now have 2 saves to see if these were just specific save glitches but they seem to be like that on both saves. Any help with these matters would be appreciated.