

Following the clue, and checking Chertsey Abbey's old large tree, the loot doesn't appear near the broken headstone.
Reloading the save or even restarting the game doesn't change anything.
I had no issue collecting other treasures.
There doesn't seem a glitch like this reported in the megathread, so here i am.
Thanks in advance if you have any recommendations, or else i guess i'll just wait for a patch.