found the fix herehttps://discussions.ubisoft.com/topic/79543/cannot-proceed-with-blood-from-a-stone-search-for-the-saga-stone/49?_=1606181775967
@black-beta same here
I went to the tower and fight the boss before story, now, I can't bypass this one, I can't move the stone door to go inside the hidden room
I'm playing PC version and Runes does not work on the middle of the mouse click, I can't remap this key to something else. Please fix this bug. I ended up using USB Xbox controller to assigned runes on the weapon.