Path Of Sighs - Collecting Bones

I have tried to complete this 1 part to get all the chests and I cannot interact with the coffin once I have collected all the bones. 

I have video to prove this but it won't let me place the bones once I have collected them all.

I have gone back to the main menu, and restarted and closed the game and continued,

And also uninstall the game and reinstall the game

All 3 options won't allow me to complete this particular puzzle.

PS5