I've encountered this bug with several cairn stones such as Torghatten Rock. No prompt to interact with the stones.

I have a similar issue with Heike (on Xbox One), he went into Beorn Cavern at one point chasing me and i ran away. Gone back to kill him at a higher level and but he never left the cave and now he is stuck inside the wall and I cannot fight him. Fast traveled plenty of times, restarted the game and still stuck in the wall.

I've encountered this bug with several cairn stones such as Torghatten Rock. No prompt to interact with the stones.

I have a similar issue with Heike (on Xbox One), he went into Beorn Cavern at one point chasing me and i ran away. Gone back to kill him at a higher level and but he never left the cave and now he is stuck inside the wall and I cannot fight him. Fast traveled plenty of times, restarted the game and still stuck in the wall.

The first box you move? In my game, the NPC is spawned but the box is stuck at a spot where there isnt enough room to walk by it and cant move it at all so I cannot complete this mystery regardless of the jars. Fast traveling, restarting the game or console, nothing works. The boxes do not reset anywhere in the world. Seen them on top of other breakables at various locations in the same spots i moved them to after the breakables respawned...

@pfroddam breaking the jars does drop the boxes but they are still immovable.